So I just got that M&P 40 and am looking forward to getting the compact, too. I just looked at some holsters online.
The Desantis Intruder is in stock and one holster will fit both guns.
The CB ST is 3 weeks out and they offer one holster for each specific gun, but one holster will also work with both guns. I gotta say I'm a little confused on that. I just spoke with them and they said one holster is shorter, but their website shows the barrel sticking out a little anyway
Anyway, I've read good reviews on both, so it seems like a no-brainer to order the Desantis. I don't really need the horsehide that CB offers. I guess I just wanted to "voice" my thoughts. Does anyone have any comments? The holsters look pretty much the same to me, aside from the clips, which could be changed.