I agree with Nanuk based on my own consideration of the issue. I find it easier to track a moving target left than I do if it is moving to my right. I expect that is true for most. If I am shooting an IDPA stage with targets of equal or near equal distance and I have the option I will shoot right to left every time. I would not for a minute try to evaluate an attackers skill level or intent, just ty to get off the X and hope he is an average right handed shooter. Try it on the range next chance, see if you don't feel kind of clumsy moving to your outside.