On the last tour, Phil was struggling a bit on HBTS, but Mike has never played better: an aggressive, very prog sound with a precise rhythmic work.
I had forgotten about Mike's playing on the tour when I replied : indeed he played great.
But the transition between the two parts, from C minor to E minor, sounds strange.
Regarding PC, HBTS may have been hard to sing, but Mama was too, and on the latter I think he sang better : his "affected" voice made the song stronger and creepier, which was a very good thing.