It's hard to shoot instinctively with an olde English longbow when you're used to shooting a bow cut past center. For a RH shooter, you instinctively hit left of the mark. In order to hit the mark, you either have to spend a lot of time reprogramming your brain, or you have to aim down the arrow. If you aim down the arrow, you will have to move your bow hand to the right to get it to line up, and then you will hit closer to the mark. Probably not as good as you would like, because everything feels strange, but quicker than waiting for the computer to reprogram.