So if you don't mind me picking your brain a little, why do you like one kind of spring-assisted opening method and not another? The reason I ask is because I can't figure out why AO knives don't get a lot of respect around here while autos maintain if not increase their cachet. Is there really that much difference between them?
I feel I clearly stated my position in my post at the top of this page, which addressed both the dislike for AO and my personal reasons for liking autos, which I will quote and condense to strictly the relevant points:
I see them as two separate kinds of knives - assisted knives are just that: assisted. They could easily just be manual knives, since the motion you make to open them is the same.
Automatic knives feel more like gadgets and tickle the engineer part of my brain.
Even more significantly different from AO knives are double-action OTFs.
The difference is that an automatic knife isn't typically just a manual knife with a spring - the knife is designed around the automatic mechanism, so it's not like it's robbing you of any control. It also allows for slightly different design choices. Going back to the Protech Godfather, the ONLY way to open it is with the button. There is no thumb stud, there is no flipper, and the blade is entirely contained within the handle in a fashion that even a nail-nick couldn't be feasibly implemented.
Additionally, some people don't like the idea of a spring-loaded knife in their pocket. A manual knife that jostles open in one's pocket might close again without interaction as it rides against the seam of the pocket and gets knocked back into the closed-position detent, but an assisted knife's spring, once the detent is overcome, will continue to apply force to the blade in an opening motion until forcibly closed. I recall seeing a picture of a guy's SOG Trident that, after he had landed from a jump, shot open through the seam of the pocket it was in. I'm not saying it's a common problem or one that is difficult to avoid (he had not nested the knife up against the seam of his back pocket, but, even if he had, the force from the spring could have pushed the knife out to such an angle where it either fell out or fully opened), but it is something that people have noted in the past.
I just don't like AO because it reminds me of cheap and crappy knives. I relish a smooth pivot that glides open to a perfect lockup; a movement born of craftsmanship and precision. Springs are for people like my girlfriend who can't flip open a knife (even with bearings). I can't tell you how many times I've handed a glassy-smooth flipper to my roommate or a co-worker, and stun me with their ability to not make it flip open.
Automatics, again, have the mechanism integral to the design of the knife. Button locks, hidden scale releases, completely concealed blades, and many other features make them seem fundamentally different. I understand the flipper = button notion, but there are certain things that you can't do with a flipper or a thumbstud.
Blades fully contained in the handle:
Blades that shoot closed:
Et cetera. Automatic knives allow for strikingly different design choices and functional differences from manual or AO knives.