My suggestion is to apply player stats from
Pes Stats Database. There are highly accurate stats for most football leagues, teams and players. They enchance realism of the game and make it much more fun to play. Everytime new PES goes out I'm waiting for a patch with these stats. I don't get why you are wasting time & money figuring out your own stats when you can have them all - better and for free!
Although I do not entirely disagree, because realistic stats add a little bit more balance to the game,
I must say that the tweaking of the stats will never make any game better; the game is not very good, I have tried all type of stats, from the most realistic stats to the most unrealistic stats -- it does NOT make the game better in any way,
It only improves the experience, but it doesn't make the game better; the game is still the same at its core,
Player Individuality is shit, all the players feel identical, the game needs to improve; the number of stats in the game needs to increase,
And the game as a whole, needs massive improvements -- tweaking the stats should be the least of Konami's worries,