UMPIRE,
With all that practice your consistency should be there. As adams said, fine tuning should be done. Move your nock in small increments and your rest until you can acheive the best groups possible. Check your arrows before doing this. Spine could be off or the straightness. As many others have pointed out on this forum, there are many factors to look at to acheive the desired group. Now that it is the off season, try some things, not only will you get the groups you want but you will learn alot about your bow (I am assuming you have someone tune it for you). Keep asking those questions and someone here will help you. There is a lot of knowledge on this forum, it has taught me a lot!!!!