Whoa, I can tell it took a sizable chunk of time not only to figure these things out but to write it in a way that is so easy to understand. Extremely well written and very helpful 100/100, would've give 93/100 for using the same example over and over, bit doing so was a good thing. It made it easier to understand what you were talking about because you were giving us a familiar situation.
^
.l
.l___ Dat Precise Scoring. (that was meant to be an arrow :S)
Again thanks a lot, highly appreciated