While taking dowm my "mauled" gt500 to send off to be dipped ( Matt at BearFoot Archery tuned ) I noticed a crack in the inside of my upper limb .... Some of you know that this is my baby .. I was getting 309-310 fps at 29" 70lbs with a 400grn arrow . This girl was smoking em . Now I can only hope the new replacement limbs will be just as hot as those were . I left the strings and cables in tune on the cams so I would have tp do is slide the cams back on and draw it a few times to so everything would settle back in place with the same performance . Now with the new limbs I have o idea if it will perform the same or as well .