Can anyone point me to an example of it?

I think it's impossible due to the Fleet level. There isn't a way for humans to switch positions fast enough in the middle of the level at this speed. Thought maybe the invincibility twiddle would help, but it seems to follow the same rules as the rest of the game at this speed.

Once beyond fleet, it's all very doable, though Brainiac is very close to being impossible. Took me about 10 minutes and a lot of luck.

I'd love to be proven wrong though, maybe theres way I haven't tried.

I agree with you :) I don't think full game Backspace 1 is RTA viable... maybe as individual episodes (the ones that are possible), but not full game