I completed the mod last night on my 2001 and it went very smooth. I now can turn my fog lights on with my running lights and they will also stay on when I switch to the high beams. I opted to no cut the notch out for the auto lights because I have never used that feature.
The explaination from the 97 Ford was a little different when it came to taking th switch apart. The guy who did it with his 2000 HD made more sense. However, where he widdled away slowly because he didn't want to break the plastic pieces (look like small pins with the tops melted), I opted to take the front cover off (breaking the plastic pins).
Getting to the ramp was very easy and cutting it (used small, sharp wire cutters and a hobby knife) took a couple minutes. I did not cut a new ramp but rather just cut straight down and made the opening square. It still shuts off just fine.
I put the face back on with some 60 second epoxy (came in a 2 tube serenge I got at Autozone). I put a few dabs on each spot where the original plastic pins were and it work perfectly.