Thoes are some of the best tanking formations.
Things to do.
Set up wrong tactics as if you'r players are on the right side, use passing on left. if they'r in defence-put attacking mentality n so on
Try to have players in position while tanking.
Playing your sub players is also a good idea, don't risk to injury the players that you want to use for next season.
By the way i was just trolling ya. Thoes aren't the best formations.. i was thinking about and came out with this one, check it out :P
It's pretty easy to set up and you'll be losing 95% of ur games as its illegal formation cause of only two defenders you would be always getting 20% possesion(Unless you'r opponent has tanking formation aswell.. if he does then use the one with all players in attack-defending mentality).