I have a 05 bowtech patriot that is giving me fits.Tonight I took it out and was going to shoot the same alum.arrows that I used i it before I tried carbons.The 1st arrow the nock broke on release.no big deal right?,2 arrows later another one broke, then the next arrow BROKE in two right in front of the vanes,that was scary to say the least.Any ideas whats going on??