Yeah, well the Chuck is pretty old school by today's standards. I remember when the custom wrap was announced. I was seriously looking at getting one. Ended up with a Mako Midi, which I still use, though not as often as my K100.
That's one piece of lingo I haven't picked up on. See it threads about the kayfun too.
I posted that in a thread back in 2010. I still use that box. Has different stuff in it now.
Still use my Mako quite often. Also think it has one of the best locking switches around.