[pianotech] Drilling pinblocks from the bottom

[Ron Nossaman]

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