Not sure I will try the next season, maybe other one. I didn't even planned to win 3 consecutive leagues, but apparently it just happened, I'd take a break, refill all the packs and try again.
I will do as you and others have suggested, but still I think it's a wrong way to play the cup, it should just be fixed.
Sorry I just vented a little11 seasons, only 2 cup finals and 2 defeats at the PK, when in the meantime I win the other tournaments as I side effect.