I can tell you that the 4 stroke “sprint track” karting in Florida is not very strong. We prefer the 2 stroke. The largest class in Florida is Rotax Max (FR125), There are small classes of LO206 (briggs) popping up but I would not jump into that without more participants. The other class that is popular is ROK. Both are fairly fast classes, and I would recommend more seat time in slower classes. I am a regular at Andersen, as well as Ocala. Ocala does have rental rotax jr. karts on rental chassis. Although they are fun they use slicker tires and they can be a handful to drive for someone who is not use to it. Are you looking to be competitive or just go out and practice?