I have a great l927 Cable-Nelson player that I plan to have re-hammered
and have the action re-conditioned as I wish it to be in better shape
for roll and hand playing.  The keys have a little side-to-side wiggle
but no rattles.  Is it important to re-bush the keys or just to rotate
the metal guide posts that the keys ride on?  Many thanks.

Merry Christmas and Happy New Year to all!
Best, Marc Goodman, Cleveland