I am curious..I recently inhertied for lack of better term a 4-40 120..It has a os 120 already on it ..the previous ownwer has since passed on and I have a wing kit as theres no wing,lol I intend to use the engine that is there.what kind of flying performance will I get. I'm just a sport flyer and like rolls snaps loops etc..If the 120 is not strong enough I can always go to my satio 150 .but its in an edge kicking butt so I want the 120 to work..