In 2006, Weinman finally underwent surgery for his shoulder but chose not to treat his neck because of the risks involved. In June 2006, the band released both the digital EP "Plagiarism", a cover album, and "Miss Machine: The DVD", which featured live footage of its world tour. Simultaneously, The Dillinger Escape Plan opened for AFI on tour after being invited by vocalist Davey Havok. Shortly thereafter, the band toured with label mates Dysrhythmia and later with progressive rock band Coheed and Cambria. Four shows before the end of the Coheed tour, Weinman flew home for "undisclosed personal reasons", which were later revealed to be compounding medical and financial problems, as well as frictions with Pennie. The group played four dates as a four-piece. In a 2008 interview, Greg Puciato said that the relationship between Weinman and Pennie had been acrimonious for several years, involving heated arguments, and the other members had already foreseen a dissolution.