Paul, I have a couple of the Coughlin's match cases, and they have room for two of the Titanium brand CR123 batteries, plus a very thin bit of foam which stops end-shake and rattle. It's a great spare battery case for my little
Nuwai flashlight, which takes two of them.
I agree with you about the Fenix. I just got mine a few days ago, and wow! If I could have gotten it back when I bought that little Nuwai, I wouldn't have gotten a flashilight which used the 123 batteries. I don't think there's much need for those now, certainly not for most of my purposes.
That Fenix is bright, cheap to run, seems well made, and generally, it's as nice as everyone over on Candlepower forums said it is.
Nels