with the "Picking-Bridge"
Virtuoso-guitarists on stage
play sitting down in a very strict,
rigid position, because the
right hand has to be in an exact
position over the strings.
This is a big disadvantage for playing live,
because the guitarist cannot talk to the
audience with his body-language by
moving around on stage.
When resting the hand
on the "Picking-Bridge",
the guitarist can play
standing upright and move
around freely without
missing strings or hitting
wrong notes because
of a misplayed picking hand.