Hey Scott, glad you saw another MM that you liked. I've had a chance to hold one of their buffalo horn models, and it was mighty nice. And hey, you can't go wrong with a trapper pattern. I looked at their site, and you definitely got the big'un. I generally prefer the 3-7/8" size for pocketability, and it's still a good size for utility. I think I may get my sister one of their smaller working trappers for Christmas, since she's been carrying a knife she inherited from our grandfather, and I'd hate to see her lose it. My next personal puchase from them is either going to be the stag three backspring whittler, or the serpentine stock knife. I can't say enough good things about their Moose pattern, either. In terms of carryability, it's as good as my Eye Brand Canoe.
Wil, I've never held the congress or five-bladed stockman, but I know that those particular knives are made by Queen. I have the moose pattern, as I've said, and the fit and finish are as good as I've seen on any modern non-custom slipjoint. The backsprings are strong without being nailbreakers, and the blades don't touch the liners anywhere. On the Mooremaker site it says that they use 1095 for the blades of their Queen-made knives. No half-stops, sadly.
The working knives that they sell are made by Camillus, I've been told. The F&F aren't quite as good, but for the price, they're nothing to sneer at. Better than anything I've seen from Case in a while, at least. The stockman that I have and use as my EDC is a good using knife. I don't know about the steel, but it's shaving sharp, and that's good enough for me.
Hope this helps. Let me know if I can do any more.
James