No kidding, a chopOmatic is just something I try to avoid, I don't care what is powering it!!!
A Pitts muffler sure does change the sound of a two stroke, Ihave a couple of Bison mufflers that make my SKs sound different, mater of fact they are even quieter then my four strokes.
As to the type of engines I use?? As stated, what ever will fly my planes.
My gassers are a bit on the loud side but the mufflers are nothing but square cans with pipes sticking out to direct the exhaust away from the plane. Ihave one fellow I fly with that spent big money on cans for his big twin and it was the loudest plane I have been around, he changed the prop and the same plane is really pretty quiet now. Props make a big difference in the sound!
Ijust really like my four strokes and other then one of them they are pumpers so plane/tank set up is really easy, they don't care where you put the fuel tank.
And that cool factor!!!!
