Kazuo Yoshizaki wrote: >> In terms of trouble gone to, it's the other way. Not drilling through is unnecessary to the process. > > I think I've seen more loose pins on grands than on uprights, and I > think it's to do with the holes all the way through or not. Am I > wrong? > > Yoshi That's the problem, isn't it. No one has enough evidence either way to say. If the only construction differences between grands and uprights was drilled through holes, it might be indicative. In any case, it's not a matter of right or wrong so much as trying to figure out what actually matters. So, do you drill through grand pinblocks when you install new? Ron N
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