It's not an IOS/cIOS issue. Never ever mess with the IOS other than 236 and cIOS 249-251 on vWii.
As was stated above, my only advice would be to try it on a hacked Wii or see if someone else will try it on their vWii and see the results. If it works on a Wii then it won't work on vWii. I haven't had anyone else complain of my file though and it's obviously working on my vWii. I'll check and make sure it loads correctly at some point this week and get back to you.
Reporting back. I decided to try it on a different SD card just for SnG. And strangely enough it worked. Sorry to waste everyone's time, but thank you all none the less.