Conversation so far:
What were some significant line up changes?
Immediately following the tour, Helloween parted ways with guitarist Roland Grapow and drummer Uli Kusch.
Who were they replaced with?
guitarist Sascha Gerstner (ex-Freedom Call, Neumond) and drummer Mark Cross (ex-Metalium, Kingdom Come, At Vance, Firewind).
Was there tension between the members of the band?
Weikath, Deris, and Grosskopf felt that Kusch and Grapow, in particular, were spending more time on and paying more attention to their new side-project, Masterplan.
Did any other band member leave during this time?
Cross could not finish the album due to mononucleosis, completing only two tracks; the drum tracks were completed by Motorhead's Mikkey Dee.

Question: How did the band do with changes?
Self-contained rewrite: How did the band Helloween do with changes?