Agree wholeheartedly with what Joe is saying. If your sight is left and your arrows are going right (or vice versa), then you aren't tuned (and it'll be a pain outdoors). The bareshaft is a good first indicator, but adjustments of the centreshot may be necessary to get the group into the middle of the target at all distances.
It may also be that the spring is too stiff or weak, giving false results, at which point you need to consider bow weight adjustment, or other more minor changes to get the bow/arrow combination correct, of course what's right for your ALIs isn't necessarily what's right for your carbons!
Tuning is fun, ain't it?
