Just bought one of these from EX_DE-NYN.
It was tight- real tight. SFA built ridges into them that index the light rail grooves, which adds to the "grip" on the gun. I could barely draw the gun from it. Since this holster was to be for my wife, this needed some attention.
I fixed this by removing the pouch from the paddle, and boiling the hell out of it for 3-4 minutes. Be careful that you remove the screws/nuts from the holster before you boil it, or they'll fall out & get lost. I had wrapped her XD in about 6 layers of plastic, then I shoved it into the holster as soon as it came outta the water- and left it until it cooled. Problem solved.
Incidentally, if you happen to have a shooting buddy of the "curvy female variety", these SFA holsters will work real well for them. They set out further from the body than your typical paddle holster, which is something female shooters need. They are also adjustable for drop, which really matters to them since they are generally "short waisted" compared to the typical man. We set Peg's on the third post down, and she likes it better than any holster she has tried.
They are good holsters unless you are intent upon hiding the gun under a loose shirt; they're a little to bulky for that application.
I see a couple others for sale here-
http://www.hs2000talk.com/viewtopic.php?t=20612&highlight=