Jim Dunlop 1mm (I have heavy strings) for strumming. For picking, nought. I can't cope with thumb picks (I like to feel the string) and me nails are useless, they either snap or grow at funny angles. No nails, no breaking, no worries! I might try a thumb pick one day. I was at one of those Hands on Music things in Witney (near Oxford UK). The guitar tutor used a really cut down thumb pick - it hardly stuck out at all. The guys name was Chris Foster. Really nice chap, great player, similar in style to Carthy, Jones, Hullet and the Obi Wan - Simpson.

Regards

Pete