Well, I applied the xml file, and I have to say that the gameplay changes greatly, perhaps too much for me, I'm not very good with the pad.

Now I'm trying to change some skills, such as shot power, technique, accuracy, to fit to my skill (which is poor).
I read somewhere here on evoweb, that in
PES 2014, the CPU changes its strategy automatically, depending on whether it is in advantage / disadvantage so take a defensive or offensive tactic. For these reasons, user recommended to set all strategies "custom". it is better explained here:
http://forums.evo-web.co.uk/showthread.php?t=73588
Well, I don'know what happens in
PES 2011, but this should be investigated.
Still here on evoweb, but also on the Italian forum, where I write, someone else has experimented in the past with the editing of PES 2011. I give you both links, the discussion is the same (one is written in Italian) , hoping that it will give further suggestions for improvement of the gameplay:
http://forums.evo-web.co.uk/showpost.php?p=2207462&postcount=1
http://oltreilcalcio.forumcommunity.net/?t=44675262 # entry311433013
However, I think that this is a new road to be explored, and I again thank Matt for his dedication in seeking new solutions to the game.