Just to be clear I said before that I'm still new to the game but as I use the same formation my orders are :
Team Mentality - Hard
Focus Passing - Mixed
Pressing Style - Whole Pitch
Tackling Style - Normal
Passing Style - Mixed
Marking Style - Zonal
I've been using it for 95% of the matches and Currently On top of my League table with 64PTS and 19points diff. from the one in sec. position.
Also playing in both Cup and Champions League Final.
4-5-1V is the best formation I saw it's well balanced between attacking and defensing.