Ideally, I would like to see them do exactly the same amount of work for each key. But that means a very well and evenly balance action to begin with... which you are only going to get with Stanwood like proceedures. I agree with your second, and think any leverage assist mechanism should be limited to doing the job of maximum 5 grams of FW I measure in terms of FW. Cheers RicB Phillip Ford wrote: > To those of you who use wippens with assist springs, > > 1. Do you adjust them so that they are giving the same assist on every key? In other words so that WW (wippen weight) is the same for every key? Or do you adjust them so that the assist is tapering from more in the bass to less (or none) in the treble? > > 2. In my opinion, actions with strong spring assist don't feel 'normal'. What do you think is the limit of spring assist at which the action might still have a normal feel? > > 3. How you measure the amount of assist that you're getting? > > Phil Ford > > Phillip Ford > Piano Service and Restoration > San Francisco, CA > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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