RE: Arrow Straightness - How Much Does it Matter?
Zero unless you are competing at a world class level. And even there thehuman factor is greater. In a mechanical set-up probably not much. The arrow occilates as it flys so it's bending as it goes thru the air.
It depends on if the company is giving you true straightness or not.
The biggest issue is how they are diffrent through a dozen that you buy. If 1 arrow is way off it will matter. I think we like to pay for a comfort factor and that's why people buy the .001 arrows for hunting.