That's cool. But, I wasn't referring to literal 13 year olds. I was referring to adults who may have felt they were being called 13 year olds because they had to play a game on Pro. The folks I know who do play on Pro do it because the ratings matter and you can really tell the difference in the player ratings, not because they're bad.
Anyway, check this out: A few years ago an EA producer was interviewed by one of the gaming sites. In that interview he said that the "Pro" level was the level where the ratings were pure, they were unmodified. At the time of that interview the other levels provided a 'ratings boost', some sort of modifier to make the game more difficult. Thus, on higher levels, it was not uncommon for the AI linebacker with an 84 speed to run down the user halfback with a 94 speed. It was also not uncommon for an average AI DB to cover (like a blanket) an elite user receiver because the agility rating of that AI DB benefited from a boost to his rating.
Now, I don't know if EA still does this. In an interview more recently, perhaps 2 years ago, a different EA producer was asked a similar question about the levels and ratings. i believe he was asked specifically what made the levels different? He declined to answer saying it was proprietary info and could not reveal it.
But, it was too late to clam up because just a year or two previous we were told by EA about the Pro level. I think the reason they suddenly got secretive was because ESPN was gaining in popularity.
Any way you approach this, you can't go wrong by trying. There are a growing number of people who find unusual happenings on the higher level and are not reporting them on the Pro level.