It is not so much about the paper fibers compressing. The reality is that paper is quite hygroscopic, just like wood, perhaps even more so. It draws in ambient moisture, expands, gives it off again and shrinks. Repeated cycles lead to warping. If you have a stack of thin punchings, after a while they will not lay flat any more, they will be like a vertical stack of potato chips. Not quite that bad, of course, but the same idea. You can observe that they do not create a solid stack, there are air gaps that develop between the layers. The result: unstable regulation --> keys out of level and varying key height (bal. rail), imprecise dip and aftertouch, as well as that mushy feeling when they compress under pressure. I will not go through an action and replace two .010 with a .020. But if I want to add more paper, I will do that. When I am touching up dip or key level, I like to take out more punchings than I put in. Jurgen Goering Piano Forte Supply (250) 754-2440 info at pianofortesupply.com http://www.pianofortesupply.com On Feb 26, 2007, at 20:12, JF wrote: > I can see the benefit of having fewer of the very thin ones, and can > see where they might contribute to a spongy feel. What about the point > of diminishing returns, though? Are you really going to take out two > 0.010punchings and replace them with one 0.020? Honestly, now, how > much can those paper fibers really compress? Gotta be some reality > here...no? -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 1567 bytes Desc: not available Url : https://www.moypiano.com/ptg/pianotech.php/attachments/20070226/d8c481ca/attachment.bin
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