So, I played with 3-2-2-2-1 Butterfly twice ... my results:
League, against a bot with 4-4-2 Flat | Result = 1 : 1 (draw)
Friendly, against a player with 4W-3N-2W-1, that player i the first place in league| Result = 6 : 0 (win)
I'll continue to play with Butterfly for now.