What would my perfect Spell Law look like? Pt I Channeling

I am rather jealous of Brian’s reworked Spell Law. He and his group have obviously but hundreds of hours into that rebuild project. That is time I do not have at present but I am giving this more and more thought. So what would my perfect spell law look like?

Essaence as the motive force

This is one of Brian’s ideas and sums up the concept that all magic is Essence and that what changes is the way that the character taps into the essaence. Essence users manipulate the essaence around them, mentalists control their own essaence and channelers recieve essaence from some outside entity. I like this idea and want to go with it. I do have a problem with Channeling magic though. That is the realm that doesn’t work for me.