I got the Hell picks, too!

First impression: All of the thicknesses are very, very good. The material, along with the bevel on the edges, lends itself handily to smooth picking, and less noise. I can see why shredders would love these. I have not yet played a pick that are as "grippy" as these are. My thumb locked into the indentations on the back of the pick, and that's where it stayed. WELL DONE, SYO!