Mate, I don't normally pull the pi55 but you are really asking for it. I'm sure others will do that for me......
Race shoes are for racing and for pulling yourself on chapple st in melbourne on friday nights. Plus I heel and toe in work boots and sandals. It is just practice.
I've only raced for 22 years in rally, formula ford, sports sedans and sprints. I'm a mechanic and a mechanical engineer that has worked for a couple of V8SC teams. I've also got over half a million kays driving heavy trucks with dog boxes.
So do you still think I won't know the difference between a dog engagement and synchromesh engagement of gears, or a straight cut or helical (what you cal normal) tooth mesh? I bet you don't even know how a gearset works.
Do yourself a big favour and spend some time on wikipedia and why things work and learn before you decide you are an expert.
Then come back, show some humble and redress every statement you just made. Just do it for yourself.