I could personally do without any of the vocal tracks the orb has done. I think Aftermath is terrible, it's my least favorite orb track ever. And it didn't have to be that way- the music is pretty good. Just that androgenous kid rapping over the top ruins it. The vocal tracks like Once more & Ghostdancing are pretty good but don't really sound like the orb, they cater to that generic chill out sound (w/female vocals) that was hot when the album was written.  The japanese bonus tracks definitely make bikes + trikes worth getting.  I would love to hear more dub songs like Tower 23 and 1855bc in the future.djbr