I was wondering that too. It didn't seem like a sound issue from where I was, cause sometimes it was like he was trying to remember the lyric and would say something and you'd hear it in the mic. Then it was like he was going around to the band asking what the line was to jolt his memory. On the first song he did it from Liquid Monster, I couldn't even remember what the vocal melody was after he sung something. I was thinking "That's not how that goes"...and it totally made me draw a blank to remember myself lol
To me - it seems like he just forgot the lyrics.
Tbh, it felt uncomfortable watching cause I knew what it was like for him to be having that moment. However, on one song it's ok, but that many - gah, I just felt bad for him.
In some sense - it took away from their overall performance IMO. Especially when he'd say "sing with me!!!" before the next song after having one of those moments...
Still a kick ass performance though! But I don't think they outdid their prior PP performance at all.
To Emerald Sword, I didn't think they sounded bad sound wise, it's just Pagan Mind sounded the best of the night so following that (That 5150 rack he brought over, that thing smokes...), they didn't sound as great.