I agree with what LarryC is saying at post #3
i played for a long time the old version (where there was the limit of +- 20 is the skills of the players)
i played both versions together (some times doing the training or watching games in both)
Now I 'm playing only with the new version
but I can't see any difference in game's mechanics.
The only difference I can see is between the official games (of the 3 competitions) and the asso games.
But I cannot figure out how it works there.