could possibly be the sweetener, I find certain citrus based juices, can irritate, highly sweetened juices will gunk up coils quicker to, as for the isub I would definitely keep that around the 35w mark. Also could be cheap nicotine used in some juices
The I sub seems to work for me at around 50 watts. Perhaps I'm frying my coils though if I'm firing too high. That might be a reason why. I'll try to stay at 35 and see what happens.
I'm hoping it's not cheap nicotine. Most of these liquids were marketed as "premium" I wouldn't expect shit quality ingredients from Cuttwoods!
I actually just tried turning it down to 35 watts, but now I hardly get any flavour. Seems a bit pointless!