I generally prefer a 1.8 or a 2.0
But with that said, I HATE the T3 and T3S, it gets this wicked metallic muting flavor if you take more than 3 or 4 vapes in a row without letting the
coils cool down and and the wicks resaturate fully.
The EVOD, and ProTanks also made by Kanger run circles around the T3's.