I was using the Keyhole bit on the back of another cribbage board and the bit slipped in the holder resulting in a cut about 1/4" deep the full length of the cut and the diameter of the large part of the bit. I have filled it in with a mixture of Titebond and sawdust. I would like to make the keyhole cut in the original position but I am afraid that the glue/sawdust mixture will just chip out. Has anyone tried this before?