I have fought in MMA and have had great success with leg locks from so called disadvantage type positions. So I can speak from actual experience.
I've baited mount into a hydraulic press, into a leg lock in MMA. In no gi Jiu Jitsu, I've been in someone's guard, rolled over to give the person mount, shrimped and hit a leg lock. If you follow the up and coming generation of grapplers, so called rules have become good fundamental guidelines, but once you're fundamentals are perfected, you can start playing around and see what works for you. I do what works for me and I do pretty well.
Baiting mount, means your mount escape has to be better then then mount retention, which is a dangerous game to play in mma, why not pull sl x guard and enter from there? Same result, with less danger when it all goes wrong.
That's not quite pulling mount, which is what you suggested earlier. What you can do in pure sub grappling and what's a good idea in a striking situation are not at all the same as each other. Jiu jitsu positional points are (or at least were) meant to bridge that gap a bit, to discourage things like rolling into bottom mount. Not because it was ever thought impossible to hit a sub from bad positions, but because it's bad fighting strategy. That you can sub people from bad positions when you're better at grappling than they are doesn't change any of that. P.S. Discarding position to go after subs isn't a new idea, either. Watch old Pancrase or Shooto and you'll see guys continually jumping off the top to go after legs and wacky neck-crank attempts. It went out of fashion because strong positional grapplers would hold them down, beat them up and finish them.
korpy: i thought of you when i watched this video. [ame="https://www.youtube.com/watch?v=e81X9R5yw_Y"]How Rickson Gracie feels about modern BJJ, and why we should learn 'invisible' BJJ - YouTube[/ame] rickson is the man.