2.0 pins currently in the block?
are we sure the block was replaced?
Did we try installing a damp chaser to compensate for the dryness?
I just finished a job with a Yamaha Spinet - the pins were horribly loose. I gave two choices1. restring it.2. treat the block with thin ca and install a damp chaser.she went with the treatment and damp chaser. The treatment worked great. Piano tilter, leave it sit for a couple of days and that could be an effective option to rebuilding it again.