RE: 4 stroke propellar expert wanted...
Yours looks really good. These are super flying planes. They originally flew with engines under .40 size but were built lighter than the SIG version. The Hog was the first (or close to it) successful low wing pattern plane. One of the veterans in our club told me that they would go high and dive to build up speed, do a maneuver, then go up and do the same thing for the next one. They couldn't depend on power to drag them around so the models were designed to fly "on the wing."
You're going to be surprised how little ground speed you need before the plane wants to fly. That's why it doesn't need super prop. The design of the plane simply makes it want to fly.