Some folks find a great instructor and a great system, and stick with them religiously. Others flit from one style to another. It's kind of like dating habits. With martial arts and women, when I found a good one, I stuck with 'em. Well almost. I'm committed to two martial arts, but only have one wife. Now within the FMA's, cross training is a bit more common than in some martial arts. Many systems seem to have a lot in common, but others seem more contradictory in approach, making it harder to cross-train. How many of you have trained in multiple styles of FMAs? And, if you continue to practice more than one FMA, how do you reconcile the contradictions between systems?