Welcome to VT Josh! What device (tank/battery) were you using before? This is an odd issue, but I think it may be due to the fact you're using a sub-ohm tank, possibly at high Watts, and the higher PG ratio isn't helping either. Try dialing your Wattage down, using a bit less airflow, and possibly moving from a sub-ohm coil to a 1.2 Ohm or similar? Changing brands of juice, flavors, and/or nicotine levels to 3mg or less may also help if you are going to use the sub-ohm coil. 6mg at sub-ohm levels is equivalent to 18mg (or more) at "normal" coil resistances ... 1.8 -2.2 Ohm because the body absorbs the Nicotine MUCH faster and at a higher-rate when it is as heat increases... and sub-ohming really heats the juice!
Rich is correct... MAX-VG means the only PG used is in the flavoring, but there is no way to know the % of flavoring. Generally, flavorings constitute between 15% and 30%, so the VG content could be 70% or as high as 85%... or even higher (as mentioned above) if the flavorings are VG-based (not very common though).
