Hej Fred We must not forget, that the forces keeping the pins not to turn, depends on elasticity in the pinblock. This elasticity could be much lesser in winterdry rooms. Seems in agreement with cracks and splits forming in dry conditions. Moreover many pins is not circular, up to 2-3 hundredth mm in cross section, and that makes further demands on elasticity. Many must know the feeling - when turning an old pin out in order to replace a string (and pin) - that the friction can vary a lot every quarter of a turn. As you will guess I also finds looser pins in wintertime. Regards -- Pianoshop Leif Olsen Member Of D.P.I.F. Denmark http://www.image.dk/~leifo
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