I agree with what you're saying exactly. My curiosity has nothing to do with sound, but rather how a cam ground specifically to build low end cylinder pressure would compare across the board with a more traditional grind like the .509. I'd also be curious to see how that .509 would react with incremental amounts of advance on such a low squeeze engine.
I happen to have a 30,000 mile 446 Motorhome shortblock sitting here that I'm starting to look at in a new light because of this thread...and yeah, what would it make with a small shot. This is good stuff!