I haven't tried Nuked SC-55, I'll have to give that a whirl next. There's an SC-55 soundfont from one of the archive.org packs that had a few hiccups for me, hopefully yours works out better. I've been stuck on my phone over Christmas so the Phoenix GM-10 soundfont has been working wonderfully ever since I flipped to it for a test.
Hang a reply if you try anything weird and wonderful that turns out sounding great. It's a fun rabbithole to fall down, trying all these soundfonts out.
edit: oh, I was just talking about .SF2 files but I see nuked is a much more comprehensive emulation. Whoops!