I was getting to that. Had to stagger in from the shop.
The MC, HDMC (HC) and the BC2 all share the same primary grind angle and shallow S grind but are different thicknesses. This is geometry that evolved from our experience in knife racing events. It offers a deep bite with minimal binding and can pop a chip while also sailing through softer targets without pushing them over.
The HC spine and primary grinds are thick and will tolerate extreme abuse. It is also sharpened 22 DPS. I'm channeling my inner Busse. You knuckle draggers can beat on it without concern.
The MC is a replacement for the LC, which was getting dinged up by knuckle heads. It is a moderate thickness everywhere and built for practical carry and to cut well. It is sharpened 20 DPS. It isn't a fragile knife, but it isn't overbuilt either. It is a practical, reliable, well built tool that represents our interpretation of a middle-of-the-road general purpose large knife/chopper.
The original BC had more obtuse primaries with a thinner BTE. It was a big damn knife and it still makes me giddy to swing it. It's the only knife to go onto KOD twice. The combination of cutting performance, durability and edge retention made it (in my opinion) the best knife on that show. However it is just a knife, not a sword.
The new BC2 has the same grind angles as the MC, CC and HC. Like the LC and the MC, it is sharpened 20 DPS. The grind thickness falls between the MC and the HC but that doesn't mean its durability falls between them. It is intended to be like the MC. A moderate thickness everywhere. But with a 20% longer blade length and the considerable heft from that length, the thicker stock and wider blade, that thicker primary will only deliver equivalent durability. The narrower grinds but thicker BTE compared to the original BC can be thought of as rotating those grinds in around a point just behind the edge. This results in less steel in the cut overall but thicker right at the edge so even though the BTE measures thicker it shouldn't be thought of as "thicker" because it will measure thinner 1/4" up into the grind. It weighs more and has narrower grinds and is a very effective cutter. So, even though it shares some dimensions with the HC, it isn't overbuilt. I gave it a reasonable balance of high performance cutting and durability. I've taken what I've learned from the competition choppers and applied it to the 12" Behemoth.
I'm fine with BC2 but I shall cake mine the BC'er because it has a more menacing connotation 
but I did some fun, and lots of practical tests
