holy shit the rg556 CAN handle upscaled fzero gx now
still gonna use the pal iso but
fuck
a previous version/what came initially installed struggled much more to run the USA iso without any upscaling
and of course once I learned that I spent like 5 hours configuring it and playing the first 3 cups and yeag it is perfectly cromulent, there are still iffy segments but the sound being smooth helps a lot