Two questions: 1. Does anyone know of a tool that measures keydip objectively - ie., you don't have to try relying on identical finger pressure for each key (an impossibility in my experience!)? I see depth gages, some of which that appear to be spring-loaded. Are these accurate and convenient to use? Do they work for black keys equally well? It would also be nice to have such an instrument for measuring aftertouch - preferably something where the spring tension can be varied ever-so-slightly to allow for heavy-touch playing or light-touch playing. (Am I getting too esoteric??) 2. Has anyone ever heard of different friction specs for Renner centers? It always seems like Renner's centers are floppy-loose out of the box. I wonder if they pin things loose, anticipating that the centers will tighten up after a period of use. Ron Torrella, RPT Piano Technician University of Michigan "Dese are de conditions dat prevail." School of Music --Jimmy Durante 734/764-6207 (office/shop) 734/763-5097 (fax) 734/572-7663 (home)
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