So I was having problems getting backups to read after installing the XenoGC, but I verified that the modchip was working by holding start on an official disc and getting the PAL scrambled version string. So I figured it was the media, and I eventually ended up with some really cheap Chinese mini DVD-Rs that I was able to burn a working Swiss disc with (AML media type I believe, brand is Banana). However, I still cannot get it to load full backups. I've trimmed the pot all the way to 0 (so the laser should just be getting the base 150 ohms. My GC is a DOL-001). The closest I can get is to load up Swiss, switch discs, and hold R while it reads the backup disc. It can see what game it is and read the contents of the disc, but it still can't load the game (holding R or not).