I'm not sure as to the direction that the nock would move after creep, but I do know that the rubber band/door knob analogy is bogus. (Sorry, PA!) First off there isn't any moving of material or more pressure at the door knob. (Principal of equal and opposite forces: knob and fingers are applying equal force at points that they contact the rubber band.)

Ignoring higher stress points (where the string goes over a sharp contour on the cam, etc.), the entire string is under the same tension. When creep happens to the material, its properties would dictate that (for example) when 1.00 inches of this string is loaded at 60 lbs, it will eventually deform to a length of 1.02 inches. In this example, if the string was 100" long and 70" of string was above the nock point, after creep the part above the nock would be 71.40 inches and the 30 below would then be 30.6". A net difference of the nock point moving DOWN 0.8" (1.4-0.6).


Danny,

As for other ideas as to why your nock point moved, have you made any adjustments to the limb bolts? Comparing tiller may point to one cause. Remember, if one bolt is turned ANY more or less than the other, the nock point will move!