It's pretty easy to see that this is not the case. If you have pulley keys the first thing to try is steaming the balance rail hole which will swell the wood and tighten them. After the wood dries the holes will still be tight and you will have to ease them somewhat. This happens inadvertently when removing key bushings often. Before cutting kerfs and inserting wood, I would try steaming them. It doesn't take much. David Love > "Holes in wood get smaller as humidity goes down..." > > I have heard this before. Believe me, I am not trying to start an arguement - just trying to understand. If a hole gets smaller, then why do tuning pins get more loose with lower humidity? > > Terry Farrell
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