the best counter atm is using SB, with sleep and the immobile passive in position 1. On turn 1 you will use your sealing on 1010 and sleep on mabui. Eventually AF will heal mabui, but he won't be able to burst you in turn 1. Turn 2, you will be able to combo mei and kill her with your position 2 ninja, as most people will press 3 even if starting with mabui is 10 times better :D Survive the 1010 mystery and you are done.

With MB, you need him in position 1 with your sealing slash. Proceed to acupuncture 1010 once she will cast her mystery (as position 1, you will have priority even with lower init). As turn 2 begins, just combo mei and kill her.

As you said, this is probably the best team you can get without DP Hidan, Sasuke ssn or 6 tails naruto. It's normal that you may have problem with it... just endure. Once we will get Ginkaku with the next treasure, this team will probably die as it can't stand the double CC turn 1.