So I've heard that unless u rebuild ur coils, u will start to lose taste past 30w or so. Been considering the istick 50 as my next apv for awhile now but wondering if I really need the extra watts to achieve big clouds without rebuilding..any opinions? Also tank upgrade im deciding between the isub, melo, or st mini as I'm pretty tight on money. Any and all suggestion s would be extremely helpful and appreciated! Thanx in advance fellow vape squaders..