Hi folks.. getting caught up on this thread which has turned out to be quite interesting. This tangent about moving the whippen rail caught my attention. I'd agree with those who dispute the notion that you can make any significant change in action leverage this way. The reasons why are adequately described already by other posts so I'll leave it there. The only real reason good I can think of for moving the whippen rail would be to get the jack at the right angle when the action is at rest and otherwise properly regulated. The well known B+/- discussion which in the end has to do with friction and not leverage. Cheers RicB What is considered within the range of action spread? 112mm to 115mm? Or is this completely determined by the rep levr window size and jack movement needed? Keith Roberts > It is an effective way of making a small change in the leverage. > Shimming out the wippen flange will also accomplish the same thing without > having to move the stack. As Jon mentioned, you do need adequate clearance > in the balancier window. > >
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