I wasn't indirectly slagging your tiebreak system.
I think the numbers you look more or less right actually. I still can't decide if I'd rather have a points based system like you have here (and I've suggested earlier) or a series like I suggested earlier in this thread. Both would work, they just weight things a little differently.
I'd have no problem using the tie break system you suggest for the upcoming season and seeing how it works. I'll mull over the details, but as I said, it looks about right in general. That's not to say that there are
small issues with the system, only that I'd have to in more detail to decide that there weren't.