There probably is, but it would vary depending on how the bow and arrow were tuned. It is possible to tune a non-centershot bow such that the arrow bends around the riser and heads in the direction the bow, rather than the arrow, is pointing. My non-centershot bows group to the left, which I assume yours do also, based on your question. I'll have to experiment with canting to see if it effects where the arrow hits, since I normally shoot with some "normal" degree of cant, and just hold to the right on longer shots, when I use gap. I can see your point, that more canting should bring the point more on target. But it may take more canting than I would want to use (180 degrees?) before it would eliminate the left grouping. I suppose, following your reasoning, that we might eliminate the left grouping only to replace it with high grouping?