ORIGINAL: MinnFlyer
I believe putting a 2-stroke in a Cub is illegal in most states ...
If you use a two stroke in a Cub, I'm afraid you'll be banned from the Brotherhood of Cub Flyers until you repent
You don't want a power to weight ratio to do 3D stuff, so a .90 FS will do anything you want, with reserve power "just in case"....
Cheers!
Jim