Polcat,

Its easy fora brassnockpoint to move if you are pulling 70# on a BK.

I usually tie a sting nockpoint that can screw up and down the bowstring to establish the optimim nockheight and tiller combination with the arrow at 90degees to the bowstring. Once this has been achieved you can mark the back of the bowstring with a contrasting color marker between the ears of the nocked arrow. At that point you can serve a nice tight 1/2" double serving as a string nockpoint that will not move up the string.

The nice part about nocking at 90degrees to the bowstring is that you can and will notice when the arrow is not level. A broken string or a stretched string will move the nockpoint up. Knowing that something has changed on your bow and that it needs to be checked out may save both your equiptment and a once in a lifetime shot on game.

Good luck hunting! >>>------------>