I very like Steve Vai, but I'm not fan of him who wants sound like him.I just knew that Vai is very meticulous about every aspect of his sound, so I wanted to try something new.
And new picks are best way to do it.
Picks are made of very high quality material, very comfortable in fingers, not slippery, at least in my fingers.
Size is like Dunlop Gels pick, but 1,1mm larger, so it makes that pick more special, at first time need to get use to it, just 1,1mm makes a difference YES! Thickness is the same like Dunlop Red Gels - about 0,8mm. But Vai's pick is more flexible.
Sound very similar to Dunlop Gels Red Pick which i very like, but little bit less high freq than Dunlop Gels. In total, very pleasant sound, fast attack, not thin at all.
Will it last forever - I don't think so, it depend of way you play, but last three weeks I playing with the same green pick 2h per day and it still like new.
I'm happy with it and for sure will buy it again.