I just came from Justin's shop, and couldn't be happier. My GT500 didn't seem to have the speed that some of the other shooters on here had with my same setup. Justin took one look at my bow and diagnosed the problem. Less than 5 minutes of tweeking and I gained 10fps. and my arrows are flying perfectly. He also makes some awesome strings. When I go to put new strings and cables on my GT, I'm going to have him put a set of his FALL CAMO on it. They are the coolest strings I've ever seen. Thanks Justin, You Da Man!!!