So, say when you dab, and you are below a certain angle where it's generally 'necessary' to put down your foot, you shouldn't be able to use whatever lever your foot can't reach.
So, that would pretty much make the double-tabletop on mooch not possible, because your left foot would be off the peg, and you can't shift through the corner.
And, it will make people rethink how they come into corners, if they already have their foot down on a right hander.
This is how the feet should be, in my oppinion: If you are standing, you will never put your foot down, ever. No matter what angle. If you are sitting, it should have degrees for where it will be put down. What degree I don't know. I'd say somewhere around 65*, if 90 is vertical.
![Image](http://www.mathsisfun.com/geometry/images/degrees-360.gif)