RE: OS .46AX vs. Evo .46
Nice post ChuckN. I have also noticed with the TT 46 Pro that its ground revs are not that spectacular but once they get airborne they can really unload well, even in a draggy airframe like a typical trainer.
I have had first hand setup and tuning experience with several OS FXs, TT 46s and GMS .47s mounted on trainers owned by guys that I have been teaching to fly. Most of them are running 11x6 MA props. Even though static revs are pretty similar when comparing the three, the TTs have consistently outperformed the others once the load comes off them. Out of the three, I'd choose the TT for high performance sport flying based on that experience.
It just goes to show that static revs with one prop are not the be-all and end-all of performance.