no its free... when you go to pick an offensive play, notice at the top of the box where you pick it from, that there is a thing that says "package:normal". push your right stick from either left to right, or right to left. you will see changes in the name... now look down and notice what players change when you enter that package... dont bother looking at your oline, it dosent change, but anything else can... go into practice mode and i think in 10 minutes youll have all of that figured out...
now for the sliders, it does affect gameplay online when you adjust those or so i believe... if you like frequent change in backs, turn HB sub in and HB sub out somewhere in the 80's and go up and down from there depending on how you like it...
now go! whoop that ass