This is the plane I took to Spain in 2006. It is powered by a Ro-Jett 65. Prop is a 13.25 x 4 Eather 2 blade.
The rudder on this plane is "fixed". It has an adjustment that allows any offset I desire. Most often, I desire ZERO offset
To the contrary, I have used the "Rabe" rudder on the Mustangs. They were powered with either a 56 or 72 Saito 4 stroke, and that rudder arrangement worked the best. Most everything is adjustable on this plane. The day this picture was taken, I was experimenting with various flap to elevator ratios. The Impacts don't seem to like the "Rabe" rudder setup. You go with what works best!
As far as the electrics go, I haven't "fully" given up on them. I will work some with the new take apart electric plane, and if it out flies this gas one, I will find a way to use it, even if I have to leave $500 worth of batteries in France! However, to date, the gas one out flies the electric one. Time will tell.