I consider myself to be a pretty good shot. I shoot targets for hunting preparation only and expect what I call "hunting accuracy" which to me is a 1" per 10 yds. group. Will I see the difference between an arrow with a straightness of .003 vs. .006. I am a machinist by trade and .003 is a lot when you are talking about the fit of metal components but we are talking carbon arrows that are flexing at the shot and are not a very rigid material to begin with. It seems to me that this would be a non factor unless shooting from a hooter shooter where the human factor is removed.