I have been playing the MU quite a bit as of late and I feel as if it is not bird Lao that is bothersome. It's his safe and fast footsies.
I play this MU with more u3 than any I have ever fought. U3, u34, u3dd, u34 dd, etc...u3 picks Lao up out of f3 for good damage. I don't waste meter on armor or EDC I just finish combos with f43 mostly unless I go for eh overhead on reset or d4 EDC f2 or b1 combo to chip him out.
It's just a footsie battle and converting off of AA daggers and random u3 hitting...lol. I also get lots to counter pokes into d4 rd slide damage. There is not much opportunity for big damage in this MU.
Whether it's 5-5 or 4-6 I don't care...it's winnable and that's all that matters. It's a grind for sure though.