i'm still pondering how i will mount the engine i have. OS72. straight up, to have the weight up near the wings to reduce the pemdulum effect for better stunting. prolly more exhaust goo. engine inverted for more pendulum effect and a more trainer fight characteristics, less exhaust goo. or sideways, but more side to side balance weight.
i always liked the look of the kadet with the engine straight up.
i least like inverted engines when starting.
i'm not a beginner. been flying model airplanes for 60 years. just adding a super slow flier to my hanger.