When I play the piano, touch type or when I pick out a tune on the guitar my hands are slightly raised with the knuckles at the base of my fingers a little higher than the finger knuckles. Watching classic style banjoists their hands are down with the knuckles from the middle of the fingers and the knuckles at the base of their fingers more or less in line - for speed on the strings, so I'm told. I've seen Chris Sands in action, (I'm sure…