I just don't get why. Ultimate choice has a lot of runs and is a big par of this speed game, so why is it in misc.?

Can you have multiple CPU's or other people while running the Ultimate Choice?The rules say nothing about this, so I just wanted to know.

Should we make an OoB and No OoB for all categories? I was thinking that we should adopt the Sonic Mania style of organization. It doesn't have to be for the unlockable characters,just for the first 4.

I want to run certain levels, but I don't know the best routes. What should I do? Any tips?