[pianotech] Pully keys

[John Delacour]

I'm working on a 1970 Hamburg model D Steinway -- a pretty 
unimpressive piece of workmanship generally speaking and among its 
defects is a rather soft Kluge keyboard, nearly with nearly all the 
balance holes ovalized.

One a few of the keys I have made a 3mm deep saw kerf at the font of 
the hole and inlaid a strip of rosewood.  This works fine but I'd 
rather find a quicker way since already I have discovered too many 
unforeseen jobs to do and I don't want my hourly rate to fall too low!

I had to remove all the cradles to scrape out from each about an 
ounce of hardened tallow and graphite and the same delightful stuff 
seems to have been used to lubricate the balance holes, to what 
purpose heaven knows.  This would prevent the adhesion or absorption 
of the various products I'd considered as a solution to the pully 
keys.

Any good ideas?

JD