Well, I splurged and bought a Sig Sauer ACP for usage on my railed pistols. Got it home, intending to put my S&W M&P 45 Compact. Instead, had to try in my Taurus 92 PT. The m&P doesn't have an extended tang to accept the rear retention bracket, so now I have to go out and buy a new M&P full size 45 ACP. Oh well.
The coolness factor here is a 10. Able to bolt on a Troy Battle sight, my unused EoTech holographic site, the laser that came with the platform. Took it to the range, and everybody stopped, looked, and wondered what I was shooting. The drooling was rampant. It takes some tweaking of the sights (not there yet, but close), but this is just plain fun. I'll post pictures later tonight. Too cool.