I finally got to shoot my new bowtech 101 airbourne today ,iys set up with a whisker biscuit, and viper sights . I have noticed that the arrows are grouping to the left at about 4" out of center , I moved my sight toward the impact of the arrow ,but I can not move it any farther left.would this be a case of the rest is out of center, even thougth the pro shop set the center shot at center and the nock set at 0. Or is the bow needing paper tuned? Whats your guys opinion?