I can't help but feel that a lot of you are new fans. Welcome!
However, it's time for y'all to do some homework.
U2 have always sounded this way at the start of a tour. Also, some inconsistency now is because U2 are still feeling their way around the setlist. Given the changes in the order of the songs as well as the variety, I'd think most fans would be happy. But of course, I'm talking to U2 fans - they'd complain if Bono was in their living room singing.
But I digress... During the JT tour, U2 also screwed up songs. I have boots where U2 started a song and then had to stop and restart. U2 also did this during the Elevation tour.
Also, given Bono's propensity for altering lyrics, what may seem like a "screw-up" may simply be his attempt at more changes. Sometimes he's hot and creates whole new versus on the spot! I'm amazed at what he can think of spontaneously and in key! But other times, I guess he falls a bit flat or the lyrics don't quite flow as well as he wants - and as such, it looks like he "screwed up".
Regardless, nothing I've heard sounds bad at all. Yes, there are mistakes, but U2 also sound brilliant. Bono's voice is in great form (the best I've heard in ages - even better than Zoo TV!!
) and I can't wait to see them.