RE: Evolution TPS .46
Got the EVO TPS on my Superstar 40. Has run smooth and trouble free 20 flights in. I think I'm experiencing what LuckyArmpit commented on. A slight delay between WOT and max RPM, but it's minor and likely could be fixed if I knew anything about tuning an engine.
One suggestion about idle. Try putting the flywheel back on. Supposedly it's there to help give a reliable idle.
I just switched from the 3 blade to an 11x6, nice speed increase, but definetly faster landings.