Lists, I hope I can run some numbers by you for input... Bechstein E, #158555, 1966, Renner action...hammers not original but appear to be Renner 17 mm KC Hi David. We are missing the FW's in this data set. How did you establish your ratio without them... or did you just leave them out here ? Looks like your hammers are about mid medium weights... probably you could go up a couple notches, especially if your ratio is indeed around 5.7 Post the FW's Cheers RicB N U D BW SW KR WW KC R 16 24 56 40 10.7 .53 19.5 17mm 6.8 17 20 56 38 10.7 .52 20.4 17mm 5.6 40 42 55 48.5 9.4 .52 20.4 17mm 5.7 41 36 54 40 9.7 .51 19.9 17mm 5.8 64 36 54 45 7.2 .51 19.9 17mm 5.8 65 37 53 45 7.1 .51 19.8 17mm 6.1 Bob M. at Pianotek thinks I need heavier hammers on this 9ft piano. The piano is generally in a studio and rolled out to a stage/gym a few times a year. I don't think I need a heavier hammer... I mocked an Abel Standard hammer on key #33 with a stock weight of 9.1 grams gave me, with a 3/8" lead=11.5 grams on the key, a downweight of about 50 and a 25 gram upweight. The hammer was stock so it needs all the typical trimming which will lower it's weight and lower the downweight and upweight...a lower up weight is not good... I have so many questions...is it so important to lower my R? On the sample the only really bad R was on #16 and #65...which raised my overall R... I haven't tried the shim to lower my R yet... I really appreciate any input... David Ilvedson, RPT Pacifica, CA 94044
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