During my Hexis days I switched over to using Dunlop's Max-Grip series, 1,5mm. I felt I got better attack from the tortexes, definitely, but they wore down too quick. Three or four songs in rehearsal would leave me with a pick with a completely flat tip, and a coating of plectrum-dust on the guitar. So, I tried a whole bunch of different picks before settling on the maxgrips, since they were nigh-on impossible to wear down (for a plastic/nylon pick). I even came across some picks that made my little area in the jam room smell like burnt plastic and wore down in the course of one song. Nowadays I kinda stick to the Maxgrips since I've gotten used to them, and they are undeniably great for trem picking, and sturdy enough to have some heft in the chuggier stuff.