Personally, I'd run the .46-AX on the SSE. Use an APC 11x5 or 11x6 and you'll have a very fun airplane. I have a couple of these engines, one on a Super Sportster and one on a Hobby People Sport Stick. They are hard to beat in a .40 sized sport plane. The Saito is a great engine but the SSE needs a screaming 2-stroke in my opinion.