I've been using these picks for about 10 years straight, and I think will use them for the rest of my life! They're are the perfect for me because of their size, thickness, durability and attack. Sometimes I scrape them with something sharp to get better grip. I only wish they lasted longer, but it also depends on how you play, and I play mostly metal lead guitar stuff, so they wear out pretty quickly on me. But still the best for me!