Enlarge the registering pins so the keyslip can move forwards. I usually plug the holes in the key bed and, place a spacer between in keys and and slip and press the slip to index new pin holes. This is for when the keys hang up in the center of the keyboard. If they hand on the ends frame relocation may be in order if it doesn't disturb the strike point, especially at the top. -- Regards, Jon Page
This PTG archive page provided courtesy of Moy Piano Service, LLC