>But the most dramatic difference you can make in a player action is to
>thin PVC-e or plastic glue and apply it in every internal area that has
>suction except the area that a valve will seat, . . .

Pity the next, unfortunate rebuilder who attempts to clean this surface.
Tried and True (and reworkable) is shellac.

Jon Page
Harwich Port, Cape Cod, Mass. (jpage@capecod.net)