Originally Posted by
RevolverRob
Grabs and frankly there are times where I do not want to retain the tool in my hand. Hand switching, while not my first choice for a knife, is something I have done in training and from watching videos, is something stabbers do quite often. Losing the ability to rapidly changes grips, shift hands, or simply drop the knife, along with degloving, all go to make me not be on team Finger Ring.
I'll note that retention is useful in some context, skinning/processing game, kayaking/canoeing, possibly diving (I don't dive, so someone will have to let me know). But notice you won't find finger ring knives on commercial fishing boats. The combination of ropes, nets, traps, and everything else pretty much guarantees a you'll get tangled in something and those guys like to be able to let go of anything at a moment's notice.
Defensive knife use is an entangled sport and I'm not a big fan of being entangled with both my tools and the person I am fighting.