Another interesting thing to note is that out of all the artists I saw on that hot ac chart, U2s the only one who has 40 plus years on them. That’s a feat in itself imo that they can still chart with the currents. Hell most those acts were not even around during ATYCLB era...
It would be a smart move to start playing it at the start of the leg, but if the Sept 8th rumor is true than they may wait until after that....or they may drop the single on itunes a week earlier before the 1st show and the song hit radio on the 8th...