One of the bow chocks on our '80 Hunter 27 pulled out while in the slip over the past few weeks. Must have been quite a blow -- one screw pulled out (leaving about 1/2 inch diameter hole where it had been seated) and shearing the other about 1/4 inch below the bow plate. Debating whether to use some kind of filler in the existing holes and seat new chock in same spot, or filling and relocating the chock a half-inch or inch away for a fresh bite. Suggestions? The plywood board beneath the metal bow plate doesn't seem to have any rot. Also, have been unable to locate exact match for the existing chock -- it's 1 inch by 5 inches with mounting holes spaced 4 inches apart and was painted black. Opening is straight and about 7/8 inch wide. Anyone know of a source?