All- Did not mean to imply time wasted, or I wouldn't think it was valuable and take the time. Just more time than I had wanted to spend yesterday given other things pulling at my time. Yes, this is how we learn things. I get that. David, I used measurements at the bottom of the key, to yield the slightly higher ratio, bottom of the key 20 mm in for the key in to yield slightly lower. This was a 17mm knuckle set. Best- David David C. Brown RPT Piano Technician Division of Music Meadows School of the Arts Southern Methodist University Dallas Texas 1-214-768-3976
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