I recently acquired what I believe is an older Kanati in a trade. The bow is 56" 47@28, limbs appear to be parallel boo lam on the back, carbon core, tapered boo lam on the belly and black glass, quite aggresively trapped towards the back. Diamondwood and phenolic riser. I've looked on Jason's website and haven't found this limb structure offered, plus mine does not have the brass medallion inlaid. The only markings other than the specs and ser# are a K with >>>---> under it. Does anybody know if the medallion is a new thing, and did Jason offer carbon core at one time?