Wind can definitely effect it, the other thing is your bow may be slightly out of tune.
I always bareshaft tune my bow to 20 and quite often I shoot a bareshaft to see if something is out of tune, like a QC check.
A bareshaft and a fixed blade react very similar.
Field point tipped fletched shafts mask tuning issues, that’s how mechanicals became popular… they are easier to “tune” when in fact they hide tuning issues.
LC
__________________
|