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Scott Murphy did some high speed videography testing of that question in consultation with Jason Cassel, Rick Baldassin and me. The results seemed to show that a 4 gram pinning of the rep lever was best ...

You will agree, I presume, that a stronger rep spring makes the hammer rise faster. We see that. It is obvious. Here is the mind-blowing part: At playing speeds, the rep spring pushes down the capstan ...

There is an environmental cost if the Home Office uses AI, if the PTJ uses or allows AI submissions. ------------------------------ Larry Messerly, RPT Bringing Harmony to Homes www.lacrossepianotuning.com ...