endgame,
I am not sure if this is what you are looking for, but I will give it a try here anyway. Well, I did a study on player development last year. In the study, I tracked and mapped the rating/talent changes for a 30-year test league. This was done in hope to obtain the information on distribution of player development (rating/talent progression) for different age. The study was done under default setting using v6.03, so it's possible the result might not be entirely applicable for other versions. Anyway, if you are interested, here is the link:
Player rating level progression study for v6.03 (i.e. player development)
http://www.ootpdevelopments.com/boar...ad.php?t=73108