tren is a great coach for all types and skill levels of freestyle, and a really nice dude. you can tell roz and JDL are in really good shape and accordingly tight all over, like nothing on them jiggles even when bouncing at 100%, nary a badonk or chesticle askew (whereas the pairs belonging to a normal female trampolining each tend to look like two bulldogs in a bag in a fight to the death)