best way to ensure that your string and harnesses are not creeping is to mark the cam in line with the limb check the poundage and record it for future reference
if you ever feel that the poundage and draw length has changed
you can check the poundage.if your draw weight has gone up the string has stretched, if the weight goes down your power harness has stretched
to remedy the problem simply press the bow and twist the string or harness (which ever has stretched) until it is back where it belongs.

this pertains to solo cam bows only