>> Do you really think that OS4 on NatAmi would allow more banging
>> than OS4 does on a PowerUP Amiga?

> No, I think it would offer a similar level of capability

So much for your suggested "banging like an original Amiga".

> I've been pleasantly surprised to see Powerup OS4 machines running
> 68K games better (and at higher resolutions) then on 68 legacy hardware.
> A combination like this could run 68K software better then legacy hardware

Like Samurai_Crow said, the hardware banging stuff (which is what you were talking about) doesn't even run on OS4, no matter if the underlying hardware would allow banging. And hardware banging software that allows to be run at different resolutions is scarce anyway.