He's still around. He's actually improved his clips by making the hole just a hair larger so it's easier to get a torx driver in there to install. In my opinion the Lynch clips are the best, I have them on all my Spydercos. I think the MXGs look like crap and they are a copy of Casey's clips.
How would one go about getting one of these clips? I have tried for months on BHQ with no luck.