I don't know if it was a misprint or what, but I looked it up on Bass Pro's website. It's hard to tell anything definitive from their pics. Don't know where they came up with the X4. Maybe they meant XT. So far as I know Martin doesn't have anything with quad/split limbs for 2012 and I doubt the 2013 bows are out yet. I would have heard. Don't lok for 2013 bows till at least November.
If You're Not Living on the Edge You're Taking Up Too Much Space
Martin/Rytera Staff Shooter
PSAA Life member, UBP Life member
PADI AOW Diver