Yeah I understand that about the 7mm, but I traded my broken 4mil setup and some cash for this setup. That's why I have a 7mil. I am starting on another motor and it will be a 10mil something, not sure on cylinders yet. I am just gonna go with the cub now I believe. I want something that's very reliable and don't have to worry about tearing into it all the time. It sounds like that's what will happen with the supercub.