Yes indeed, Reinz. Thanks for clarifying for me. I'm sorry I wan't clear about that.
I didn't mean to say that a front side cross draw was a sweep danger. Rather that some instructors consider a from-the-waist cross draw rig (10 o'clock for righties or 2 o'clock for southpaws, as Reinz stated) to present a better grip to an assailant than to the wearer. Hence it is a retention issue rather than a muzzle sweep problem.
I haven't ever hear of this opinion against crossdraw being applied to shoulder rigs, Joe. I have no training or knowledge of issues pertaining to retention with a shoulder rig. Someone with training or personal experience will have to chime in about that. It's a good question really. I'd like to hear some opinions.