Oh my God, I'm so amazing!

I tried to find info on this last time you mentioned it but couldn't. With this I'm assuming he has an easier ratio to start with that is shifted, shifts, whatever into a higher ratio for smashing out remainder of the kilo.

Surely this can't be done in a track kilo though as you're only allowed the one gear ratio?

Not actually true, at least it wasn't last time I checked, you are allowed to use gears if you are in a purely indivdual event, pretty much the only event where you can do this is the kilo (or 500m for women).

It's not often used, probably because most think that it's not worth the effort with mechanical problems, extra weight etc, you may as well just get good at starting.