Probably 'cause the Maule family put the fin on with an angle to the fuselage.
True, but I have flown both the fixed pitch and the CS version of the exact same model and the difference is quite noticeable, I guess that extra 150 to 200rpm the CS puts out on TO does make a bit of difference on the torque
Left door open, plane turns _____? Why?
Left, coz the door acts as a camber on the fuselage?