I got the kydex with mine as well as the kydex that are more concealable. I like both but am using the regular kydex for now until I get a good belt. They're nice.. I thought the metal ones may have the chance of rubbing things and scratching against them so that was my decision making point.
I have both the kydex and j clips. If I'm in a situation where I don't want any clips visible over my belt, the j clips work really well. To wear the j clips, you do need to have a good belt. The j clip just attaches to your pants and without the pressure of a good belt, you will be sagging quite a bit!
Ordered one on the night of May 28th, Tommy said it would tale 4 weeks, got an email yesterday saying it shipped, that's only fifteen days. Gave me his cell phone number too, just can't beat that type of service, hoping it comes today or tomorrow, with all the reviews I'm really looking forward to it.