<html> Wim - I often use my Apsco upright action cradle (removing # 1 & # 88 wippins), clamping the top action and rotating it, first so that the hammers swing clear without contacting reps.  You can immediately pick out suspect (tight or loose) pinning.  By taking off and measuring (by feel, gauge, or swings) a few, you know how to interpret the way the rest appear swinging on the frame.  This method works well unless the shank traveling is poor, in which case, in this unnatural position (X rated?) the hammers may rub, in which case, you have to swing one while restraining its neighbor.  (sounds almost like Square Dancing with the police).    To do the wippins, rotate the action so that the wippin flanges are on top.  (Don't let the hammershanks drop hard as you rotate...use something to restrain them so there is no damage to the centers).  You can adjust the position of the balance point of the wippin suspension so that you can set the rate of movement of your samples (you've set samples).  Those that move in an otherly manner are your repinning wictims.    Also good to check side to side movement.  Hope some of this helps. David Skolnik At 01:23 PM 02/07/2002 -0500, you wrote: <blockquote type=cite class=cite cite>I kn= ow how to correct the problem, but is there an easier way, other than taking each of them off the rail one at a time, to check the tightness of grand hammer flanges? Or, for that matter, the wippen flanges? WIm </blockquote> </html>