I just bought one of these to test after some questions came up on another forum about concealment holsters with a retention device.
http://www.safariland.com/belt-slide...ter-53700.html
It just came in last night and I have to say my initial impressions are pretty favorable, especially for the price point. The retention device is pretty intuitive to use and the holster sits a lot flatter than I was expecting it to.
I'm going to run it through an ECQC this weekend and see if I can get some gun grapple time on it. Time will tell but I have to say I'm pleasantly surprised so far. If your agency mandates a retention device on concealment holsters or you just want one, then this looks to be a viable option.