Ok, sorry about the long time not posting, been dealing with work issues and have not yet pursued the new videos. Will try to get to that soon.
One quick comment on fingering. I am still (after 29 years) in experimental mode, after discovering over and over that I can sometimes go very fast, automatically sensing the best fingering as I go, and other times (most of the time), stumbling through it. I've found that the number one reason for this is that I was solving the cube out of frustration, as I was attempting to wind down after stressful work conditions. And so instead of thinking "smooth" "quiet", "flowing like water", "in tune" solves, I was trying to push it to go faster, and as a result the turns got choppier and with less precise control. This was like a compulsion, which is about 100x harder to master than the other mind-sets (not impossible). Sometimes in this mode I could make it go fast, but it is not at all elegant, so I'm working away from that compulsion now.
I think a lot has to do with the condition the mind, cube and fingers are in, for example, I usually bike to Star Bucks, and once there the blood has left my hands, the cube is cold and not evenly tightened. After an hour warm-up my hands work better but the cube may still be out of kilter. And then coffee often has a shaking effect on the hands, and once in awhile does not - then if the cube is also in perfect condition I will then go super fast. And I'm certain of the 8 TPS (bursting), even recently, though not regularly. Even 25+ years ago I would do the cube in 8 or 9 seconds once or twice per week, primarily due to fast fingers I had back then. And these weren't lucky solves, just more a psychological state then, and a physical+psychological state now.
Aside from these issues, there are also issues involving how to hold the cube, how to turn the sides, etc. These techniques are still in experimentation, as I find it hard to let go of any of the methods that I've come up with, even the bad ones - a little discipline is needed to retrain many of my algorithms to better fingering methods. And that means holding the cube in a different orientation, possibly changing algorithms, limiting fingering to specific turn methods, etc. My understanding of the modern fingering method (guessing here) is that I have to restrict my hand motions to specific ones that function more like pushing the side, and all-the-while keeping the cube in one position. I assume the modern fingering is a set of rules along these lines, and I'll try to read up on that (could someone provide a good liink for my research?), then I'll incorporate some things I've come up with on my own to broaden it a bit.
The super fast method is where a maneuver seems like one thought - kind of like on a typewriter when you get fast a word is just one thought, then your subconscious mind pulls together the details to facilitate that thought.
The time I did it in 7.0 seconds I had walked 10 miles, then sat down and drank about 4-5 pepsi's (a bit thirsty). Then I had one of those moments where it felt like everything around me was in perfect synchronization. At that moment I tested my time dilation theory - which is to trick my mind into believing there was a life threatening event, but not to focus on panic, to instead get the adrenalin rush that seems to slow down time and make the mind clearer (actually had this happen a few times before in real events, so I tried to reproduce those events in my mind). It worked, those 7 seconds seemed like plenty of time, I could form all the thoughts necessary to perfectly execute the solve. Normally I don't average anywhere close to that, and believe me 7 seconds is way way harder to do than 8 seconds, which I do on average once or twice per month even now.
Because of my bad wrist it is a lot harder for me to get my averages down, but I have never shy'd away from a challenge. I think it is possible I can overcome all that.
Sometime in coming weeks/months I'll setup a private website to talk about my thoughts on the cube.