kerrybishop

Crown tank does well 45-60 watts
if you into higher watts get TFV4
I ordered (2) of the RX 200 also just gonna Use my Crown tanks. Love the SS coils in watt mode. VapeSafe!

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First off I want to ask what you mean by 30W and 50W coil. Watts are used in relation to power, which is your battery output. What resistance is your coil? That would be more helpful. Also, you don't mention what the PG/VG ratio of juice you're using. That makes a huge difference. More PG = a harder/harsh throat hit.

I'm using a 50w eleaf battery, Atlantis rebuild able tank, and a 30w coil. I have been vaping for two years, started at 30 mg nicotine, but got all the way to 1 mg. Then it's too harsh. I can't puff it without coughing. Right before the harshness I changed the coil and refilled the tank with a new bottle (always from same shop, they know what I like). Took juice back to store and they re-did it, still too harsh. Changed coil (about 9 times now), still too harsh. Redid juice again, changed tank, changed battery, changed tank (again), messed with wattage (before was always 3.8w) found that if I purchase a 30w coil rather than my usual 50w it is not as harsh (can puff twice before I'm coughing up a lung versus the first puff on 50w coil). Messed with air flow over and over. I'm feeling like the vapor shop bought some new PG that's too harsh. The smoke has been less than what it was too. I have asked them for help each time I changed liquid. They told me to let more air in, which does create more smoke, but still just too too harsh. Then they said to turn my battery up...I have been doing my method for two years-two years..I don't think it's suddenly where I put my battery at!! But now I'm just smoking and I really want to let them go again. Any thoughts, ideas on what the problem is??

Vaporesso invents cCell ceramic coil as vapers requires. They replace glass fiber and cotton by ceramic material and sintered its wire into the ceramic, which shortens e-liquid absorbing time and prolong the lifespan of coil itself.
Target 75VTC kit as Vaporesso’s first e-cigarette combining cCell with the most popular temp control tech now is presented to most people. A more comfortable hand feeling was expected to be delivered with a pistol styed shape mod. And this design does not fail us at all.
Features:
1) Ceramic cCELL Coil
2) No Spitting
3) No Dry Hit
4) Self Cleaning
5) Delivering original aroma of ejuice. Clean, pure and consistent flavor.
6) 2 adjustable modes: Variable Temp and Variable Wattage
Details:  <removed spammy link>
PBusardo Review - The Vaporesso Target 75 VTC Kit & cCell Coil: He take a full look at the Vaporesso Target and more importantly the cCell coil, the first ceramic coil heard that he has actually been satisfied by and happy with. 
https://www.youtube.com/watch?v=LTfbO1RWL4c