so, a year ago or something I bought these and fell in love with them. and after a year of playing on daily bases, I can assure they do last longer than other picks. But that added grip actually don't feel as good as picks without it. All tho it still is 0.88 , my martin and dunlop green picks feel bit stronger , ernie ball picks bends easier , and after a lot of chugging they start to change shape. So at this point i'm giving a try to other picks, but they last long time and that is good thing