I don't think a 1000HP engine would be any harder on the trans than the 502. The Avon 230 rear tire's traction ability is the limiting factor by design. Put on a square-profile racing slick tire and you're right, the tranny couldn't handle it, but Boss Hoss designed their transmission to withstand the 502's torque coupled with the 230 tire's traction limitations. Period.
I think the factory has done a good job of engineering their bikes to withstand the abuse that many of us guys dish out.
Actually Joe, I'm kind of tired of hearing you gripe about the transmissions. You made a comment on one of the forum's recently that you might lose control if you down-shifted into 1st gear at 50-70 MPH. It is my understanding that this is precicely what we are supposed to be doing and I do it all the time. I have been told not to put a heavy strain on 2nd gear and I don't. I can take 1st gear up to 120+ MPH which is quite a rush and plenty fast for me. Sure, I would like to be able to blast into 2nd gear full throttle, but our overdrive transmission just wasn't designed for that. So, of the guys that have had tranny issues, how many are willing to admit that they used reverse to back their bikes up hills, ran in 2nd gear at low speeds and shifted hard into 2nd gear?
Boss Hoss has built us all great machines that, I for one, am quite proud of. Just follow their few guidelines and you will reduce the likelyhood of having any problems. Just ask Crazy Rick!!!!
I know you're not going to take a liking to what I've written here, but really Joe, you have made your point already on every forum we have.