I've not been following this entire thread but have read at least one individual comment that when you add moisture to wood, a hole in the wood will get larger. This seemed to be accepted as fact. I find this not only a bit counterintuitive but contrary to my experience altogether. Try steaming a balance rail hole in a key and see if the balance rail pin is easier or harder to get through. I use this system to size the balance rail hole frequently with good success when there is a slight pulley key problem. The steam swells the wood and the hole gets, yes, smaller! Did I miss something? David Love davidlovepianos@earthlink.net
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