I have been concerned about replacing whole sections of the open pinblock with new pinblock stock. Years ago there were some problems with the sections lifting out. I think that is because epoxy then was not very good for woodworking. But I am still careful. This is why if I plug, the blocks integrity must be first rate. I feel that the extra gluing surface plugs give me help in preventing this problem. In addition, after I plug an open face block I put on new veneer and locate the holes by taking a paper pattern. I realize that this option may not have been open to you. If in the future you need to remove one of those mortised open face blocks just remember that the veneer on the of the case comes off with heat and patience.
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