I'm into the shred type playing, and I'm getting ok stamina wise and at sweeping arpeggios (perhaps not quite as cleanly as i'd like!)
But I have no idea of the best thumb position. i was watching the Michael Angelo video (speed kills), and you can hardly ever see his thumb over the fretboard. Mine tends to stick right up or even curl over the top of the fretboard (I know this is bad technique!).
Any hints anyone?
Cheers