While I personally use a Serpa for my XD, I'm having trouble recommending it after watching several Serpa failure videos. I'm not sure I quite understand how their failing, but it happens from time to time. I love mine and have had no issues with it however, I'm not sure I feel comfortable recommending it w/o that disclosure. How terrible would it be to have a gun for self defense and have it fail on you when you needed it the most.
I watched the video and experienced the same thing; initially. Mind, the gun was fully unloaded. Having never seen this kind of holster before, I was very suspicious about how well it would work.
First, I couldn't get the pistol to seat correctly. I had to apply a lot of force. Then, when I did, I couldn't get it out again. I tried the adjustment screw, but it made no difference. The retention device just would not release. I was unable to depress the button enough to disengage it.
After a few cuss words and thoughts about writing a nastygram, I considered that it may be just that there was very little tolerance. However, I had read a review on Amazon.com that had forewarned me this might happen.
I have a ParaOrdnance P14-45 and it may just be a snug fit. I tried pushing the gun against a back stop to see if I could release the pressure on the spring and allow the release to disengage. Eventually, it worked. But I had to keep doing that about a dozen times, to loosen the mechanism enough so that it would engage/disengage the retention locking mechanism normally. Now, it works fine.
Surprisingly, there was nothing in the literature that came with the holster to suggest there might be a problem; nor, what to do if the pistol became stuck. But now that I know, I would definitely recommend it.
Roy