I shoot carbons mostly. I still have some XX75 camo hunters that I sometimes shoot with. Oh, and I shoot Carbon Express Terminators 4560. Besides the fact that alum. bend and carbons are either straight or broke, I sighted my three pins in with aluminums. 20, 30, and 40 yards. Switching to carbons gave me 25, 35, and 45 yards without changing anything except the arrows.

Works for me!