Since the arrows are hitting to the right, that means your arrows are stiff. So you can add weight to the bow, add point weight, go to longer arrows, or weaker arrows. First however you need to set the nock. Fletch contact it most likely the problem with the difference in the bareshafts. What type of rest are you using? What do fletched shafts and bareshafts look like in paper? This can be a pesky problem, but it is important.