ORIGINAL: jmbuckhunter
It could have someting to do with the arrow having a weak side that shows up more when it is rotated to a certain direction. Be it up, down, right or left. The flex of the arrow at the shotmay be magnified when the weak side is rotated a certain way.
That's what I'm thinking. Have you ever tried "floating" your arrows, Jeff? I don't know if it helps but some swear by it. I've done it. If nothing else, it boosts my confidence.