Originally posted by Wheels2:
I am not yet skilled enough to shoot bare shafts and fletched arrows together (or any arrows) at 20 yards, thus I must rely upon the arrow flight.
Such results will not yet be reliable.
So far as arrow flight vs arrow angle in the target, I have always found that if an arrow flies tail left on the way to the trget, they is how it will impact, and stick in, the target.
No offense intended, but if you don't have the accuracy or consistency to group arrows at twenty yards yet I wouldn't worry about tuning. All you really need is something close so you can practice your form. Shooting bare shafts will drive you crazy, they are very sensitive to any shooter error...one reason they make a good tuning and training tool.
If you want to try tuning, shoot
both bare and fletched shafts together and compare where they group. It's much easier to read than to try and watch them in flight. Go to acsbows.com and click on "knowledge base" on the left side of the main page. The tuning section has some very good information on bare shaft tuning.
Just my opinion, but don't get all worked up over tuning until your form is more solid and consistent and you can group your arrows a little. You certainly don't need to be an expert archer, but if you can't keep them on a paper plate at 20 yards tuning will be very frustrating for you.