Recently got a black handled FFG Delica 4. Love it's light weight design. My paramilitary 2 now feels like a tank after carrying the Delica for a few weeks.
Compared to the PM2, flicking it open with my thumb is not difficult, but not as easy as it should be in my opinion. I really have to flick it open hard.
I believe it's the stiff spring constantly putting tension on the blade tang even when the lock bar is depressed.
I have loosened the pivot but to get it opening easily and smoothly with my thumb, blade play occurs.
And yes, I have cleaned the blade out and properly lubricated it. Compressed air works wonders.
Literally impossible with my delica. Easy on the PM2, I'd end up slicing up my finger if I tried it too many times with the delica.