Fred - As Piano Service Manager for Everett during the early 80s, I am familiar with the loose tuning pin problem you have described. If I am correct, you will find the the bottom row of tuning pins,just above the bass bridge, as being the most loose. The problem is not delamination. The problem is that Everett used mutton tallow to lubricate the pressure bar screws before they were inserted in the pinblock. The tallow "creeped" and affected the bottom row first, and then, depending on how much tallow was used, creeped into rows above it. Putting in a larger pin does not really fix the problem. Back in the 80s we found that if we removed the tuning pin, coated the inside of the hole with 5 minute epoxy and then drove in the pin, that after a day or two, the pin was tight enough to hold the pitch of the string. The pins in the holes treated this way never really felt "normal" after the treatment, but they were tight enough to hold. And they stayed tight enough to hold... Bill Brandom
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