I noticed the last couple of times I've shot, that I have the occasional arrow that appears to do loopty loops or or circles as it's going down range. Then the next shot will be fine. Haven't investigated enough to see if it's one or two particular arrows. Could it be couple of bad arrows, a fletching issue, or a bit of a pull of the trigger? Shaw replaced strings this summer and it was shooting fine. I think I've stumbled across a couple bad arrows.

Thoughts...