I had this problem a couple time at the shop I work at. Tell your dealer to get a hold of bowtech and order 70# limbs. It is a lot faster because you don't have to wait for bowtechs production. Put the 70# limbs on the 60# bow and send the 60# limbs back. Bowtech should do this free of charge for your dealer. Just swap limbs. I have done this on 2 or three bows for customers now.