When I demoed it, the demo bindings were set 2cms forward of centerline. The shop manager I borrowed them from said he had played with the binding position while he was trying them out and found the +2 worked the best. When I demoed them they felt great in that same +2 position. Maybe it just bugs me that I don't know what I don't know meaning I never gave them a try center mounted. On the other hand, with my body type 6'3", 190, and long femurs, I alway thought a little forward is good. Whats more, I'm just coming off skis that were notorious for having the system binding be a bit aft (Volkl AC30s) with it always feeling like a fight to stay out of the back seat.
It was also interesting in talking to my guy at the shop (whos skis I demoed) about how some manufacturers are starting to mark +1 and +2 on the ski as they're finding its a better setup for many people.
So I'm thinking leaving well enough alone and having the bindings (Marker Griffons) mounted +2. Anyone have a compelling reason not to or some posible negative side effects?