Once you've divorced your folding knife from any and all defensive notions, you get a lot more freedom in what you carry. As far as flippers, that's what I usually carry. (See my recent post in the Knives and Guns thread.) Quality manual flippers rarely fail to deploy for me and if they do, it's usually a matter of shaking them one way or the other. Honestly, my fail rate with thumb studs is worse. When I do fail on thumb studs, they usually stop with just a little bit of finger meat near or below the plane of the blade. So I suppose that if I got bumped hard while in the middle of flicking a thumb-stud knife, I could shave off a centimeter or so...
I got a job offer once that required moving to California. I turned it down. There is a lot of good out there but the laws (and some of the people) are crazy. Moving could work. There are a few Supreme Court cases coming up that could make things better but violating your natural rights is a very high priority for the people in charge there. It's a lot like New York, which is already taking steps to circumvent a possible pro-liberty ruling in one of those cases.
Priorities are what they are. If you have a gym with classes, BJJ, or even a boxing club within driving distance; swapping that in for your current fitness routine wouldn't be a bad idea.
I'll have divorced folding knives from my defensive notions once I am out of the locale and can carry a gun and fixed-blade along with spray (The Spyderco Ronin exists, same length as Yojumbo but fixed, now they just need a fixed Civilian and I'll be good for "Free state carry"). I would LOVE to simplify with a revolver and a fixed blade. I am telling you, man, I am personally in a truly unique and weird state (not like my state of residence) in terms of being able to buy/own arms in CA specifically.
When I first came here, I loved finding and reading those threads about "I pulled out my SAK and she started screaming 'OHEMGEE WHY DO YOU HAVE A WEAPON', for entertainment, and the funny part was, half of the guys would end the story with "If only she'd seen my G19 heheh", or some other indication they can freely pack. I know that logically, in a place with people who make you put a fin on your rifle and then go "Okay, its safe now", you'd think there would be more pearl-clutching at my knives, but I have just never experienced it. I would imagine this is largely due to my discretion. However, it could happen. In my experience, you can calm down a lot of nutty people with tact, though. I have generally an "80s metalhead" look about me, long hair, that look can be turned up or down, so people generally have a lot more to look at than my waistline, under my shirt, etc.
I think, in this day and age, that look actually helps me. Instead of seeing me as some hesher, stoner, criminal as they might have 35 years ago, they look at me as a pleasant, rock & roll throwback to times past. They look at me and see a musician, or an artist. I value that cover. I also do play music, but that isn't here nor there.
Very premium advice though, a BJJ class is in my future, it makes me feel like prey having minimal physical skills. Then, I am taking my family and moving out of here, and carrying, legally. Maybe Montana. Maybe Colorado.