Looks like this thread is a moot point...
Well lots of people still want to read about it and some of us want to talk...
I bought a used hollow ground Manix 2 back in the summer, partly because it was a good price. At first I was not real impressed with it but as I used it I learned to like it more and more. It wasn't real sharp when I got it but I used it for a couple of months cutting boxes and tape before and after our move.
The M2 is wider and heavier than the Para2, I guess for an EDC the big advantage of the Para2 is that it is light and relatively thin. The M2 feels good and solid. What I learned the most about the M2 was how smoothly it operates. The dynamics of a BB Lock knife (and an Axis lock for that matter) are so much different than the dynamics of a liner lock, frame lock or compression lock. Those locks require a detent ball, they unlock suddenly on opening and they always rub on the blade tang a certain way, plus they don't lock up until the blade hits the maximum of its travel. The BB Lock unlocks on opening in a smoother way with less abrupt action, and locks as the blade opens in a more progressive manner. Some liner locks if you open the blade slowly they don't lock up completely but the BB Lock always locks up completely.
The lock stiffness that you read about for the BB Lock has to do with the stiffness of its spring, which is much stiffer than the springs in Axis locks. The BB lock requires more than one finger to unlock, but it is easy to learn to do it one-handed. The M2 is one of my quickest knives to open and close if I am doing it one-handed.
If you need or want a knife that feels more solid than a Para2 then the M2 is a good choice. At least the hollow-ground version has what I think is a little bit stronger tip than the Para2. Plus the hollow-ground version is relatively inexpensive.
I recently got to handle the Manix 2 LW for the first time and I was impressed with its very light weight for a knife of that size and lock complexity. I may have to buy one just for grins. I'm still keeping my Para2 and I'm carrying it right now.