I do appreciate it NG, but if what you need isn't "what you need" then I'll probably just end up confusing more people in the long run with it.
I also started thinking that it's possible they don't want us to be able to figure it out (to prevent sandbagging). If we know the formula then we can manipulate our averages and that might defeat the purpose of the weight in the first place. Ya know?
If Alex is allowed tell us what the weighting system is, then I'll re-write it. It's probably best left as a gray area.