I was in the area for the gun show again. I tried CAT in Chantilly, and got no joy there. I don't know if it was the fact that I oozed new guy to the spa, or maybe because they were getting busy, but ending was less than desired.
I went back to my hotel room, hopped back on my laptop, and started clicking through BP ads. I found the one for MTM, and remembered that it got some very glowing reviews here. I made the drive, and it was WELL worth it. Rates were as mentioned before, roaming above and below, mechanical but determined finish, overall felt quite enjoyable. If nothing else, I know where I'll be going whenever I come back for more shows.