Hi Rook Me thinks you are being a bit too under specific :) I suppose you mean by <<increase the key height>> you are talking about actually raising the balance rail support punchings by a given amount ?... Or did you mean raising the front of the key ? In anycase it all depends on the lengths of each arm from the fulcrum yes ? And the starting angle of the key at rest..... yes ? So there is a ratio out there.... of course... but you have to know your starting conditions. Cheers RicB Is there a ratio that can be looked upon as a standard with the following scenario: If you increase the key height by ... , you will increase dip by ... . Something tells me it's not a 1:1 ratio. Curious Rook, -Phil Bondi(Fl)
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