For some reason I think the eXPERIENCE pre sale ran smoothly, iNNOCENCE pre sale didn't... Probably has to do with the fact that there were fewer people in the eXPERIENCE group. Many people let their u2.com subscription expire and only renewed after the release of the new album. As an ongoing subscriber I was kind of pleased to read that the release date of Songs of Innocence also was the line between the pre sale groups.. Simply fewer people checking in at TM at the same time..