I can't tell you much about the Evo but the OS engines are quite heavy for their size. You must remember that a gas engine at half throttle offers lower rpm than glow. They are also heavier meaning the same power is not there. My observation- for a 60-90 size airplane glow is as yet still better. Once you get into 120 size, you can consider dle20. The OS 22 is almost asheavy as the dle30.
Regarding airplanes, if you want sports flying only, any of the Gp models are good
Ameyam