[VonBarb.]

That said, you are entirely free to build whatever plane you want. Just please consider giving priority to planes that flew and which were the more widely used. If there is more interest in 400 downwards-firing guns than in the backbone of the IJN's heavy bombing, transport and general purpose aviation in the first years of the Pacific War, then so be it. I just don't think it's worth the time.

Besides, what ifs call what ifs. If you do make the G10N1, then someone will want a P-55 Ascender to shoot it down, and in turn there will be requests for Japanese what-if fighters etc... Where does it end ?

Cheers

Nico