Our Grand Action Support Kit makes regulation a whole lot easier. Made of hardwood, it mounts securely to the underside of any grand keybed.
Just drill a small hole (or use an existing hole) and screw the small arm onto the keybed with the cheekblock screw provided.
The larger arm extends to create a sturdy support for the action. (A shim is included for use on uneven or shallow keybed surfaces.)
See illustration below . . .
