All good Feedback guys, with lots of good variables such as props and power with a small amount of weight difs between engine sizes.......
We'll be look'n for power over speed on this acrobatic plane, and won't want to wait for the RPM to build on the 2 stroke. Flying weight will be about 6 lb. with a wing area of 531 sq. in. Looks like the .72 and .82 Saito are the same size for mounting, with the .82 1oz heavier. Compared to the .46 2 stroke they are only 25 mm longer and 6 mm wider.
I'm running a Saito 100 on a 10.5 lb warbird with great results with power and fuel savings.

Mando.........