Well, my new CF M390 Military came in today - here it is next to my PM2 M390:
First overall impressions? Yes, quite big. But after EDC'ing the PM2 for the last 5-6 months, it was not a HUGE step-up, but I still have to get use to it. The other thing I hesitated about - the CF scales. I "heard" they were kind of slippery. I did not find that to be the case. They feel very grippy and secure in the hand.
First impressions on a lefty operating the right handed military one-handed? Actually, I am surprised to admit that it was not that bad. Closing the Military feels like a variation of how I do the PM2 with my thumb on top of the PM2, but with a change in the hand position to allow my index finger to press on the lock, just enough to get the blade into the ball-detent - at that point I can use the back of the blade against my pants/leg/anything to finalize the closing operation. I got busy doing other chores today and did not play more with it, but I feel it is "doable" for a lefty thanks to that large opening hole in the handle/liners.
I need more time to get more comfortable with it. The only "problem" I have now is that it does look truly awesome/expensive/rare and I "almost" hate for it becoming an "user" - it feels like a collectible!
Will