*Expansion: Modeling growth rate

[Raven]

I had the impression that if you do that then your retiring player completes the season but then during your DSFL year you won't have your retired player in the NSFL while if you retired during the offseason then you'd be able to have your retired player remain on the NSFL team (with no TPE gains).  I didn't re-verify that in rule book, though, because it made my math easier.
So anyway, yeah that part of the model could be way off.

You are absolutely right. Retiring at the trade deadline and not after ultimus does indeed leave you without a player in the NSFL. So in an ideal situation everyone is nice and only retires after the ulitmus leaving their player to play for another season.