Look slander my words and talk all you want.I have more years dealing with this than most.most of you will try this anyways.If I am wrong why do easton arrows come with tuning stones.I told you to take the test.shoot a arrow that is untuned at 40 yards and a tuned arrow and see what flys better.I will have this test demo and have photos at the league shoot today to prove my post.And as for my backroundI have been in league shoots since I was seven and now have over 20 years shooting I come from a family who took state every year since my grandpa was in his 20's.my grandfather worked and was buissness partners with martin archery when compounds were 1st invented.we all have worked in archery shops and for bowtech building bows.we go to trade shows andhunt religously. I have more pope and young bucks than most people. I think I have a little knowledge