Hi!!
I am trying to learn the best possible right hand technique now that I'm starting to play the banjo, but I am having some problems with my thumb (I pick with my index finger, and I'm always hitting the head with my thumb).
However, every time I look for information I find something different! On several places the general advice is that the thumb rests against the 5th string after each other string is picked, however on this video http://www.youtube.com/watch?v=yXV4nt1Psck it looks like this is somewhat flexible... Any particular advice?