That explains it. I thought he sounded incredible in 2018.Bruce mentioned in Zagreb at one of his (endless) book tour shows that the Rock in Rio gig was the worst of the whole South American tour as they were sick and had the shits. Apparently, he lost 2.5 kg between Mexico and the Rio gig and had a bucket backstage ready for when it was needed.
Sick or not, he still sounds better on Aces High now that he did back in 2012-2014 when it was the first encore.
I never understood the inclusion of Aces High on the Maiden England tour. It was too slow and Bruce was struggling with it.