You have a tuning issue. Possibly a spine issue. The 4 fletch stabilizes flight faster thus resulting in better groups.Either that or your form is really bad.


I'm not as informed about compound tuning but with a stickbow,if you are tuned perfectly and have great form,you can shoot bare shafts without any fletching to the exact same spot as fletched arrows. The fletching just helps correct errors in form or tuning.

Can you bareshaft test a compound like you do a stickbow? If so that's where I would start to see what's wrong. Lots of online info about bareshaft tuning.