Hey thank you very much for posting this. I am assuming that Brees has Superstar trait inherited?
Her are my rookie QB Jordan Parks's xp gains
WEEKLIES
250 Passing Yards - 1000XP
24 Completions - 920 XP
3 Passing TD's - 1000
MILESTONES
300 passing yards - 450
400 passing yards - 2000
500 passing yards - 4000
3 TD's - 562
4 TD's - 1125
5 TD's - 4000
SEASONAL
4800 Passing Yards - 20000XP
4000 Passing Yards - 5000XP
3500 Passing Yards - 500XP
So, it seems that the weeklies are very close to each other. Perhaps this might be not affected by Parks being a rookie, but rather by the production grades? Although, Parks is a Rookie, hence his production rate has started from 0, and I believe is up to 36 at the moment. I would assume Brees would have higher production grades after all his years, and yet he gains slightly less XP compared to my rookie. At this point I am going back to the idea that Rookies do earn more xp, and must be related to their senior year college production grades.
The Milestone and seasonal goals seems to be differentiating much more. Highest milestone goals gives about 4 times more XP for Parks compared to Brees. I have no idea what is affecting this, since if both have the superstar trait they should be earning the same amount of xp. Could it be again, the fact that Parks is a rookie, that almost triples his XP gain compared to a Veteran? And yet the seasonal goals are the same. Although in my game Donovan McNabb has the potential to earn same amount of XP as Parks, and Donovan has slow development trait.
The more I get into this the more confused I get.
P.S: Just checked Fitzpatrick's Milestone goals. He earns more XP compared to Brees for milestone accomplishments. I just need a confirmation from you if Brees has Superstar Development trait inherited if possible pleas (Fitzpatrick has quick development trait).