If Terminators aren't shooting good its probably because your bow is out of tune. Any time you change anything you must resight and retune. The Terminator line of Carbon Express is a heavy and not the striaghtest. I'm not sure but I think they're striaght from +/- .003 to +/- .006. Terminators are decent arrows and tough but there are much better carbons out there.

Good Luck!