NariTuba - What causes it is when Cyber Sub and Raiden do their Quick Uppercuts (midscreen) for some odd reason they get pushed backwards. It's fucked up, but all you have to do is turn the game on and see for yourself. They get pushed hella back. Also has to do the arc of the uppercut.
Jim - That's a good question, because i say it's less likely to get a Toasty while doing that uppercut combo. Midscreen is still the way to go, but at least he pops out after 500 uppercuts lol (maybe more?). Also, it seems better to do the Cyber Sub/Raiden inf because if you are getting combo'd you can try more inputs instead of waiting to recover from your move (that's in theory, but it makes sense).
interloko - Which one did you have in mind? You may list a few. Honestly, i don't think any are 2 directionals, but UUU needs to be tested for a lot of characters. There is a DDD group.
I'll try to put together a video of nearly everything i have done over the last few days. I have it all recorded (like 95% of it and some of it was done while in air with other controller).