You have the whole 2016 USA tour where he sounded great. Then you have the AC/DC run. He still got it for sure. Yeah some songs sounds weaker (like SCOM, and YCBM) , but you can pick several examples of 2016 where songs like NR, Dont Cry, Civil War and even Coma sounded very good.
What I'm trying to say is as the tour progressed he started to sound worse on several songs. I think that is because he is not as excited as in the beggining, the novelty is off. Is just the same songs night after night, the autopilot is on. Autopilot = Mickey.