I’ve been doing this for a long long time!
Bareshafting while helpful can also be a mental roller coaster! For example I have some arrows flying like darts with no feathers. I have been shooting them for a while now. Could shoot the bareshaft out to 40 with no issues. They group right with my fletched arrows.
Then ALL OF THE SUDDEN….last week my bareshaft started showing stiff in flight….I’m sure it’s a FORM ISSUE....this has happened numerous times over the years and if you let it…..will make you pull your hair out. Your FORM must be consistent.
This is what I would do to keep my sanity and to keep from changing arrows and wasting money….if your bareshaft is fly reasonably straight….and the arrow setup is what you want….fletch it up and spend a week shooting broadheads. If the arrow flies great with broadheads….ACCEPT the results and STOP shooting our bareshaft for now. Shoot the fletched arrows and work on accuracy and form.
I will repeat…too much focus on that bareshaft without understanding that FORM causing a billion issues will have you committing yourself to an asylum and in dept to an arrow company