I went back quite a ways, the only post I saw you have any kind of link was post number 1077, I don't have a subscription to read that article
I also found the best output of my model here
http://ecomodder.com/forum/showthrea...-23123-83.html
Not sure what all I messed up since then, but it was way more accurate than what I have now.
Edit: look at the second post not the first.