Ok, got it to work now
3-5-2:
Overall: 36.2%
Left D: 27.66%
Central D: 31.38%
Right D: 33.86%
Midfield:
48.05% 
Left Attack: 40.22%
Central Attack: 39.51%
Right Attack: 38.4%
4-4-2:
Overall: 36.86%
Left D: 36.56%
Central D: 35.7%
Right D: 33.86%
Midfield: 36.88%
Left Attack: 40.82%
Central Attack: 38.37%
Right Attack: 38.09%
With a 4-3-3, my Central Attack breaks 50%, and midfield stays around 34%...I might have to try that one of these days.