Competitive tramp and tumble is great for some athletes. There are three events, tramp (this is in the Olympics and very impressive to watch at that level!), tumbling (this is done on a rod floor which is bouncier than your 40x40 spring floor is like a track), and double mini (this is a mini tramp with an angled front part and then a flat back part, so the athlete runs, does a "mount" jump, and then a dismount onto a mat behind this apparatus). I'm not a T&T expert but I've gathered a bit of knowledge over the years and I've worked out (gymnastics) with some girls who also compete tumbling. Some people compete all three, some people two, some just one like just tumbling. USTA works a little differently than USAG as far as levels, they have categories like sub beginner, beginner, sub novice, novice, whereas USAG follows the level 1-10 system like the other USAG programs.
I really wish there were more T&T programs in my state.