Bob...
You must take a regular size. I had mine made two inches longer, thus it took a little more time to reach me. Plus, she was filling a large order for the Secret Service guys. As in my post, you already know that I chose the "Double-Action" vest myself. What color did you choose?
I went ahead and ordered a couple of different sized pocket holsters, too. They stick on well, don't they? One of the "IP's" (internal pocket holsters) I got was for my S&W AirLite Ti. Turns out that the lady who owns the company carries the same model. That's her in the pictures in the brochure. If you look carefully, you can see her pulling out the AirLite in one of the pictures.
When I first received mine, I thought the "IP's" didn't hold my pistols very well. However, moving the holster around a little will eventually land the pistol just where you want it. I haven't been "made" yet and I also carry something on my belt. I can't remember if I said it in my original post, but the really small holster for my Seecamp comes with a ribbon-like very light strap that also hooks to the velcro and holds the itty-bitty Seecamp securly. I like that.
KR