Always good to read up
I don't want to confuse you with my attempts at an explanation, so I'll wait for someone else to help you out.
That setup is very,very clean! I am rather envious of the Spektrum there. Is your motor getting hot already? Again, I would suggest getting another motor such as in the C0-27. of course, it'll still run on your ESC.
So have you done much RC before this? You seem like you're just switching from something...