<html> <body> A Hi Cy,             Excess friction on the tip of the spring effects jack position with regards to the knuckle.  For good stable regulation that slot HAS to be slick, and the tip of the spring, should be polished. 9:21 AM 07/02/2008, you wrote <blockquote type=cite class=cite cite="">  Heck, you could *remove* the rep lever and not affect letoff!  Right?     No!  For several reasons.  How stiff is the spring?  How consistent is the return position of the spring?   The jack /knuckle relationship is dependent on correct tension and friction with the spring, then the adjustment items.   The friction between the jack tip and knuckle will also have an effect on let off.  Watch some things change the next time you Teflon the knuckles.</blockquote> Clear like mud Eh! :-\ Regards Roger <blockquote type=cite class=cite cite="">This is great info... can't wait to try it.   --Cy--</blockquote></body> </html>