RE: Flash or PST Reaction Arf ??????
Flash is on sale right now. Combo is about $2500.
Also, for aerobatic maneuvers the Flash is the plane to own. The Flash excels at flat-spins, high alpha knife edge passes, snaps, etc. Not sure about the Reaction as I've only seen them do low passes and aileron rolls. If you plan to fly around in circles and do sport maneuvers (rolls, loops, split-s, etc) both planes will do the job.