You take it off a tortoise. (Don't.)When I started recording my guitar playing about seven years ago, I was a confirmed 1 mm (Dunlop nylon textured grip) kinda guy. The producer/engineer convinced me that a heavy inflexible pick, at least when I'm playing it. (and I do play fairly fast and loud) tended to dig into the strings too much and yield harsh unpleasant results. I went to 88's for awhile. Now I use a .73 Tortex (JDunlop), and I'm a much happier person...mellower.
W-O