Earthling789

There's an old joke that "Wind-chill" was invented by a meteorologist that also smoked...  The dialogue went something like this:
Meteorologist:  "I'm going out for a smoke"
Producer:  "It's cold out, better bundle up... the thermometer says 10-F"
Meteorologist:  [Jokingly]  "I think I'll strip down to my underwear and see how cold it 'feels"... that will give people a better idea on the effect of wind on your skin" [strips and goes outside to smoke]
Producer:  [after a couple minutes - pokes head out  the door]  "So, what's it feel like?"
Meteorologist:  "F-F-F-F-Feels more like t-t-t-t-two"
Producer:  "You better come in before you catch pneumonia"
Meteorologist:  "I w-w-w-w-ill ... in a m-m-m-m-moment... gotta f-f-f-f-finish t-t-t-this cigarette...."
 

There's an old joke that "Wind-chill" was invented by a meteorologist that also smoked...  The dialogue went something like this:
Meteorologist:  "I'm going out for a smoke"
Producer:  "It's cold out, better bundle up... the thermometer says 10-F"
Meteorologist:  [Jokingly]  "I think I'll strip down to my underwear and see how cold it 'feels"... that will give people a better idea on the effect of wind on your skin" [strips and goes outside to smoke]
Producer:  [after a couple minutes - pokes head out  the door]  "So, what's it feel like?"
Meteorologist:  "F-F-F-F-Feels more like t-t-t-t-two"
Producer:  "You better come in before you catch pneumonia"
Meteorologist:  "I w-w-w-w-ill ... in a m-m-m-m-moment... gotta f-f-f-f-finish t-t-t-this cigarette...."
 

I recently made a 600ml batch of 30/70 PG/VG mix, with 25% flavoring... and yeah, it seemed to be a ton of flavor (150ml total) and only 30ml of additional PG.
When you mix a 30ml bottle with 20% flavor, you don't think much about the volume of flavor because 6ml is so low, but when you multiply that by 10 or 20 for larger batches, it does seem like a lot, lol.  
I've had to double-check my math before too... especially after mixing one of your juices that is only 15% flavoring, and then mixing an even larger batch of one that is 25-30% flavor... it does seem like a ton of flavoring when you're mixing really large batches

When I use to buy my juices locally or online... I would frequently buy 240, 300, or 600ml at a time, and they nearly always came in 30ml bottles... with rare exceptions of getting 60, 100, or 120ml bottles if they had them in stock.  More often than not, though, 30ml was the standard in-stock sizes, and I actually appreciated having many, smaller, more manageable bottles around... so I could leave one at work, one at the cabin, one in my backpack, and store the rest in the fridge.  If I ordered 600ml and it came in a 500ml and 100ml (or five 120ml) bottles, I'd have to divvy it out into smaller bottles on my own?
Even today, mixing my own juices in 300-1000ml batches... I still pour the batches into 30ml and 60ml bottles for convenience and portability.   The largest bottles I use for storage are 120ml bottles.  Even when I break down a liter of Nicotine base for freezing, 120ml (or smaller) bottles are used for freezer storage so when I pull one out for mixing a batch, I'm not exposing large volumes to the atmosphere, causing Oxygenation degradation of the whole batch.

The short answer is the control circuitry steps the voltage up by drawing higher Amps... this is why you need to make sure you are using high quality, high Amp batteries in your mods.  In order for your mod to step up to 75W with a single 18650, it can draw upwards of 20A+ (depending on the mod's chip-set and the charge-level of the battery).  Most mods have safety built-in to prevent them from exceeding a specific Amp range, just like they won't fire coils below a specific Ohm rating.
@jasonculp did a really good write-up on how the chip-sets bump up Wattage, Amp load on batteries, etc. and can give you a much more detailed answer... but suffice it to say, the mod's chip-set does a lot more than just display the Ohms, Voltage/Wattage, and battery-level  

The short answer is the control circuitry steps the voltage up by drawing higher Amps... this is why you need to make sure you are using high quality, high Amp batteries in your mods.  In order for your mod to step up to 75W with a single 18650, it can draw upwards of 20A+ (depending on the mod's chip-set and the charge-level of the battery).  Most mods have safety built-in to prevent them from exceeding a specific Amp range, just like they won't fire coils below a specific Ohm rating.
@jasonculp did a really good write-up on how the chip-sets bump up Wattage, Amp load on batteries, etc. and can give you a much more detailed answer... but suffice it to say, the mod's chip-set does a lot more than just display the Ohms, Voltage/Wattage, and battery-level  

Those are all perfect answer thanks! 
And correct, we're happy to order in drums if that's what people want (exaggerated) but because brands and flavors sort of ebb and flow on popularity, I'd hate to have 240ml bottles just collecting dust. However, especially on our own products, offering deep discounts on large buys we're completely cool with. Thing is, we sell to distributors (naturally) at a completely different price than retail, if a customer wants to buy as much as they do, I really see no reason not to extend the discount.
At any rate, I've added in some discounted pricing on the Black Label, Classic Line and "Explore other eLiquids" category. (Pricing is just above the add to cart button) We'll likely continue to play with these numbers a little more if things go well. (Someone today just purchased 60 bottles of classic so it appears the demand for the discount is there)
Oh one more thing, on the Vapor Talk liquids, I've set it so you can mix and match (So 5 bottles of X, 5 bottles of Y and 6 bottles in X in a different strength still applies the discount)  

I agree larger bottles usually cost less per ML, usually because you're only getting one bottle (less packaging expense), lol, but also because they discount "bulk" size to entice you to buy more for a few pennies extra.  I would have bought my juices in 1-L size if they were offered like that   Today, the industry standards (based on consumer demand) have pretty much become four main size bottles... 10, 30, 60, and 120ml.
I think what @Christopher was getting at was still offering discounted pricing for volume purchases, but providing the actual product in several smaller bottles, rather than one or two large bottles?  For example, if you order 240ml, you'd get eight 30ml, four 60ml bottles, or two 120ml bottles, rather than one 240ml...  From a stocking standpoint, of an item with a shelf-life, having to carry multiple sizes is a nightmare in the stockroom, so I see the beauty of only stocking one or two sizes of bottles... only 30ml, 30 and 60ml, or 30 and 120ml sizes... and configuring orders to accommodate those size combos.   It will keep the stockroom easier to manage and will ensure all products shipped have a longer shelf-life for the consumer.
Years ago when I managed a grocery store, people would often ask "why don't you stock 2oz jars of X or 2-gal jugs of Y?".  The short answer is that they go bad sitting on the shelf because they are not a high-demand item, and in the long-run, stocking six different size jars of Mayo (and a dozen different brands) just doesn't make good logistical or economical sense, when 99% of the shoppers generally pick up the standard or economy-size (double-size) jar, despite having other size options  

The short answer is the control circuitry steps the voltage up by drawing higher Amps... this is why you need to make sure you are using high quality, high Amp batteries in your mods.  In order for your mod to step up to 75W with a single 18650, it can draw upwards of 20A+ (depending on the mod's chip-set and the charge-level of the battery).  Most mods have safety built-in to prevent them from exceeding a specific Amp range, just like they won't fire coils below a specific Ohm rating.
@jasonculp did a really good write-up on how the chip-sets bump up Wattage, Amp load on batteries, etc. and can give you a much more detailed answer... but suffice it to say, the mod's chip-set does a lot more than just display the Ohms, Voltage/Wattage, and battery-level  

I learned that empty pill bottles work really great for holding my tanks in my vape desk,and I learned I really *do* like the square kanger occ coils.

My friends have started calling me the "walking air freshener".  This is a major upgrade!

When I use to buy my juices locally or online... I would frequently buy 240, 300, or 600ml at a time, and they nearly always came in 30ml bottles... with rare exceptions of getting 60, 100, or 120ml bottles if they had them in stock.  More often than not, though, 30ml was the standard in-stock sizes, and I actually appreciated having many, smaller, more manageable bottles around... so I could leave one at work, one at the cabin, one in my backpack, and store the rest in the fridge.  If I ordered 600ml and it came in a 500ml and 100ml (or five 120ml) bottles, I'd have to divvy it out into smaller bottles on my own?
Even today, mixing my own juices in 300-1000ml batches... I still pour the batches into 30ml and 60ml bottles for convenience and portability.   The largest bottles I use for storage are 120ml bottles.  Even when I break down a liter of Nicotine base for freezing, 120ml (or smaller) bottles are used for freezer storage so when I pull one out for mixing a batch, I'm not exposing large volumes to the atmosphere, causing Oxygenation degradation of the whole batch.

When I use to buy my juices locally or online... I would frequently buy 240, 300, or 600ml at a time, and they nearly always came in 30ml bottles... with rare exceptions of getting 60, 100, or 120ml bottles if they had them in stock.  More often than not, though, 30ml was the standard in-stock sizes, and I actually appreciated having many, smaller, more manageable bottles around... so I could leave one at work, one at the cabin, one in my backpack, and store the rest in the fridge.  If I ordered 600ml and it came in a 500ml and 100ml (or five 120ml) bottles, I'd have to divvy it out into smaller bottles on my own?
Even today, mixing my own juices in 300-1000ml batches... I still pour the batches into 30ml and 60ml bottles for convenience and portability.   The largest bottles I use for storage are 120ml bottles.  Even when I break down a liter of Nicotine base for freezing, 120ml (or smaller) bottles are used for freezer storage so when I pull one out for mixing a batch, I'm not exposing large volumes to the atmosphere, causing Oxygenation degradation of the whole batch.

Yes, it is... but don't do it that often, or you can find yourself in the dog house

Sounds like the cotton is over-wicking and flooding the coil?  You might try re-wicking with a thicker piece... one that fits more snug in the coil and that might slow the wicking process (and the popping) because it is tighter in the coil?  Also, if the "wings" of the wick are causing the issue, using a thinner piece of cotton may do the trick as well... so there is less surface area of cotton and therefore less wicking on the sides.  Different brands of cotton wick differently... faster, slower, hold more per cubic-centimeter, etc.... so when you use a different brand, you have to play with the amount you use and the way you wick your coils.
Out of curiosity, what brand of cotton is giving you the issue?

I don't know what kind of study you're doing, and I'm not clicking the link to find out about a few subjective or bias questions which will likely lead to zero conclusions (other than "vaping is bad", which is the go-to for the medical/dental community).
As a former researcher, I can tell you the only honest study you can do, will take at least 500 test subjects and 10-20 years to conduct properly.  You'll need 100 each of non-smokers/non-vapers for control group...100 each current smokers, former smokers who don't vape or use any other nicotine diversion, former smokers who vape, and non-smokers who vape.  You'll have to also eliminate/mitigate environmental factors, excessive drinkers, caffeine addicts, and those who consume sugar (drinks/candy), or any other known oral-health damage causing factors.
I'd wish you luck on your endeavor, but we both know you're probably not going to be investigating this thoroughly (long-term) or seriously... because next semester you'll have a new pet-project to complete for your indoctrination officials (a.k.a professors)... rather than learning real dentistry....
Sorry for the cynicism, but I've been around long enough in the medical field to know smoke-and-mirrors faux-research attempts when I see it....

Walt, you're experiencing the same thing all of us have gone through at one time or another...   Years of smoking not only cause a memory effect from repetition, but they also create a chemical dependence in your brain, and it takes time to rid yourself of those chemicals.  Think of it like Stockholm Syndrome, where you begin to have affection towards your captors/torturers... the analogs have become your friend for many years, and it's hard to say goodbye overnight without reminiscing and remembering those fond moments  
The way to power though is to vape your higher Nicotine juices to quell those cravings... and YES... talk about it.  We are your "Group Therapy" session here, so feel free to vent or just talk about your success/failures of the day.  We're here to listen and encourage, not judge... we've been there, and can tell you it will get better and easier in time.  Some of us passed that first major hump in a few days... some took months... but never get discouraged!  We're here for you  

Walt, you're experiencing the same thing all of us have gone through at one time or another...   Years of smoking not only cause a memory effect from repetition, but they also create a chemical dependence in your brain, and it takes time to rid yourself of those chemicals.  Think of it like Stockholm Syndrome, where you begin to have affection towards your captors/torturers... the analogs have become your friend for many years, and it's hard to say goodbye overnight without reminiscing and remembering those fond moments  
The way to power though is to vape your higher Nicotine juices to quell those cravings... and YES... talk about it.  We are your "Group Therapy" session here, so feel free to vent or just talk about your success/failures of the day.  We're here to listen and encourage, not judge... we've been there, and can tell you it will get better and easier in time.  Some of us passed that first major hump in a few days... some took months... but never get discouraged!  We're here for you  

Walt, you're experiencing the same thing all of us have gone through at one time or another...   Years of smoking not only cause a memory effect from repetition, but they also create a chemical dependence in your brain, and it takes time to rid yourself of those chemicals.  Think of it like Stockholm Syndrome, where you begin to have affection towards your captors/torturers... the analogs have become your friend for many years, and it's hard to say goodbye overnight without reminiscing and remembering those fond moments  
The way to power though is to vape your higher Nicotine juices to quell those cravings... and YES... talk about it.  We are your "Group Therapy" session here, so feel free to vent or just talk about your success/failures of the day.  We're here to listen and encourage, not judge... we've been there, and can tell you it will get better and easier in time.  Some of us passed that first major hump in a few days... some took months... but never get discouraged!  We're here for you  

Walt, you're experiencing the same thing all of us have gone through at one time or another...   Years of smoking not only cause a memory effect from repetition, but they also create a chemical dependence in your brain, and it takes time to rid yourself of those chemicals.  Think of it like Stockholm Syndrome, where you begin to have affection towards your captors/torturers... the analogs have become your friend for many years, and it's hard to say goodbye overnight without reminiscing and remembering those fond moments  
The way to power though is to vape your higher Nicotine juices to quell those cravings... and YES... talk about it.  We are your "Group Therapy" session here, so feel free to vent or just talk about your success/failures of the day.  We're here to listen and encourage, not judge... we've been there, and can tell you it will get better and easier in time.  Some of us passed that first major hump in a few days... some took months... but never get discouraged!  We're here for you  

Walt, you're experiencing the same thing all of us have gone through at one time or another...   Years of smoking not only cause a memory effect from repetition, but they also create a chemical dependence in your brain, and it takes time to rid yourself of those chemicals.  Think of it like Stockholm Syndrome, where you begin to have affection towards your captors/torturers... the analogs have become your friend for many years, and it's hard to say goodbye overnight without reminiscing and remembering those fond moments  
The way to power though is to vape your higher Nicotine juices to quell those cravings... and YES... talk about it.  We are your "Group Therapy" session here, so feel free to vent or just talk about your success/failures of the day.  We're here to listen and encourage, not judge... we've been there, and can tell you it will get better and easier in time.  Some of us passed that first major hump in a few days... some took months... but never get discouraged!  We're here for you  

I've built several out of scrap wood lying around...
My current tank holder is a 5"x5"x1" piece of pine with holes slightly larger than the 510 connection and spaced roughly 1" apart (which makes a grid of 16 holes) for holding tanks on my desk.
Here's a few pics of ones I've bothered to take pics of

(made from spare closet doorknobs)



One I made for a former member here

Cutting by half is a good start when you go to sub-ohm vaping, but I've found it is more linear than that... if you want to maintain the same Nicotine "feel" as you get from the higher Ohm coil.
For example... if you are using a 1.5 Ohm coil and 12mg Nicotine... and want to drop to say a 0.5 Ohm coil... you're dropping by 67% in resistance, so you should drop at least 67% in Nicotine strength too... to say 4mg (or 3mg if you are buying commercial brands that offer strengths in 3mg increments). 
Personally, I use 6 or 9mg at 1.2 Ohm... an when I (occasionally) use a 0.5 Ohm coil (59% reduction), I also drop my Nicotine by the same (or more) ratio... so that puts me vaping 2-4 mg strengths at 0.5 Ohms.

Were you ever a smoker?  If so, how many packs per day, and what brand/strength? 
Chest pains are highly uncommon and not a side-effect of vaping, nor an indication of allergic reaction.  If you were never a smoker or user of tobacco, using any e-liquid that contains nicotine is not recommended or advised. 
What device are you using (battery/tank) and what brand/flavor of e-liquid are you using?

I don't know what kind of study you're doing, and I'm not clicking the link to find out about a few subjective or bias questions which will likely lead to zero conclusions (other than "vaping is bad", which is the go-to for the medical/dental community).
As a former researcher, I can tell you the only honest study you can do, will take at least 500 test subjects and 10-20 years to conduct properly.  You'll need 100 each of non-smokers/non-vapers for control group...100 each current smokers, former smokers who don't vape or use any other nicotine diversion, former smokers who vape, and non-smokers who vape.  You'll have to also eliminate/mitigate environmental factors, excessive drinkers, caffeine addicts, and those who consume sugar (drinks/candy), or any other known oral-health damage causing factors.
I'd wish you luck on your endeavor, but we both know you're probably not going to be investigating this thoroughly (long-term) or seriously... because next semester you'll have a new pet-project to complete for your indoctrination officials (a.k.a professors)... rather than learning real dentistry....
Sorry for the cynicism, but I've been around long enough in the medical field to know smoke-and-mirrors faux-research attempts when I see it....