I would have the pro-shop make sure the riser isn't warped. This can be caused by alot of different reasons and if it is the case, no matter how many new limbs you get, it isn't going to help or stop the problem. This was the problem with my 04 Liberty and it could/probablly was caused by the guy at the proshop where I bought it. He pressed it to set it up and he seemed to cut corners everywhere (he helped "tune" my bow by eyeing everything up without even putting a level on anything or shooting it, and he had my Trophy Taker tied to the cable slide instead of the down cable, plus he had my rest set so that when it would lower down it was smacking the riser and taking chips out of it )