My experience for asymmetrical formations :
- I don't care much to set a counter formation
- When i tried to play counters (for example vs your oppo formation setting AML + AMC,ST to the left side) I failed
- I just set a classic formation like 4-4-2, 4-4-2 ND or 4-5-1V that fits for the game and for my players
- Don't underestimate those formations. Of course there are abandoned teams but teams like this, with good games in CH.L. or league, it's not by accident. It's a voodoo team