Chief, Here I am again :D
I'm going to disagree with Jim on this one. In your other post, you said you were shooting 60# and just starting out. TOO MUCH. I would guess that you are NOT getting any kind of consistent draw length, or release. So your arrows are getting different "push" and therefore showing different flight characteristics.
Just guessing here but I stand by my earlier advice. Get what you have shooting descent groups before you try tuning. If at all possible, GET A LIGHTER BOW!!!! 30-40# will help you learn better than struggling with 60#
If you can, post a video here so we can reduce the guessing by seeing. But I would put money on your described arrows in the target being the result of too much bow weight to come anywhere close to consistent form.
Arne