Alright, I'm 99% of the way to being issue-free. I really appreciate all the help.
The problem I'm having is with getting analog controls to work properly in WiiSX. No matter what controller I'm using, switching to analog causes problems with analog movement. No analog stick on any viable controller seems to register sensitivity. Pushing one fully forward in any direction still has the input react as if it's being lightly pushed. This results in characters stuck in the slowest gait a given game allows and makes any platforming-style games a nightmare to play. It's basically d-pad or bust, which is a bit of a headache in 3D platformers. Any clue what the route cause of this might be, or is analog just kinda bugged in WiiSX?
Also, does anyone know of a forwarder that works with Mod 2 for WiiSX 2.1?