Well I can
I Shoot Carbon Tech .0015 and my buddy shoots Goldtip Expenditions .006. We were shooting @ 40 yards and I told him to shoot 4 arrows at his target with his arrows and then shoot 4 of mine at my target with mine. Well guess which set of arrows had a tighter group. I sold him on new arrows! I think if the arrow is the correct spine it'll fly good just some even more then others