I think he wanted to do Z2 for years before he recorded it I remember hearing about it in early DTP days, basically around Addicted. My understanding was that Sky Blue was more of a result from the label and management so there's something more digestible than a full on rock opera album. Some of the nightmare on the Z2 process was a result of the universal choir, but I agree, overall the final product suffered from everything involved. As for Genesis, I'm pretty indifferent towards it. It's fun as a preview for the album but I'm sure I'll skip it entirely while listening to the album. I'd rather just listen to the songs individually than hear short snippets of all the songs mashed together. I'll wait to see how it is when it's released, but I liked Transcendence. I think it was his best work since Deconstruction partly because the band had more input.