On the advice of several on this board, I decided to try an arrow with a heavier spine. I went with CX maxima hunter 350's with blazers. So far I am very impressed. My groups seem to have tightened up and my speed is outrageous! I cant wait to shoot it throught the chrono. I am using my 30 yard mark to shoot at 40! Arrow flight is great and again, groups seem a little tighter. Thanks for the advice on these arrows. One question though. I typicaly shoot cock vane out in order to give me more cable clearance. Most on here prefer to shot CV up or down. Is there any disadvantages in shooting CV out? I am shooting a ripcord rest on a tribute.