Fixed Time Trial Bikes

Well if I lose the speed socks, sperm hat, shave my heed and legs and go out in my underpants I would be just as fast?*

*Thats what I understood.

surely the amount of area added by an overshoes which is 1mm thick is completely negligible?

Overshoes might be better - they might not,

I think it depends on the shoe, and without tunnel testing you won't know which is faster. I wear them because they keep my shoes clean and they're bright white which should make me more visible

I thought overshoes were proven significantly more aero, with a decent reduce on wattage or whatever you serious folks measure?