Guys I came to the same conclusion. The Mark2.1 and the right C/G it's a different model. The Evo 35 was a struggle all the way with little reward and the ones with the Saito just did not seem to have the power. The Moki, or Mark, is the perfect motor for this plane. I tried flying it at my home fields and ran out of sky pretty quick. We have a pretty good size field.
If you want to join the Sundowner racing crowd within the USRA this combo works very well.
Tom