I haven't really identified a collection in my CRKs. It's a bit random/scattered instead, at least so far. Of my four CRK, the 'zaan is PJ, of course. The large Inkosi and large Sebenza are both micarta. The small Sebenze is box elder burl. While that burl is pretty, I'm not sure I want pretty for my larger CRK. They seem heavier duty, which seems opposite pretty or fancy as you prefer to exclude. I could probably do CF, though not having a CF inlay on the lock side bugs my OCD a little. If I were to go with CD, I would probably want the inlays on both sides like micarta inlays. I think there have been some like that, though I don't remember if that included Inkosi or just Sebenza. I may eventually start an Inkosi collection, but am not ready to do that until I rule out collecting the other two or the Mnandi, which I have yet to experience; still waiting on that magnacut for the first one.