Hello Technicians, I have a Steinway D from the early 1930's. A new Kluge keyboard was recently installed. It is not an accelerated action, i.e. no half round. When Steinway came out with this accelerated action in the early thirties, did they change the top stack fixed rails to match the new accelerated action? Was the geometry changed? What if any, is the downside of using a non accelerated action with post 1934 top stack rails? Are there other considerations? Whippen choices etc. Are there mixed views on this issue. I would be most grateful for a reply. Bill Wallace
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