Conflicts between Max and the other members led to Max leaving the band. He was replaced with American singer Derrick Green. Although the band's album sales have lowered with each album released with Green, he remains in the group today, having recorded the albums Against (1998), Nation (2001), Roorback (2003), Dante XXI (2006), A-Lex (2009) and Kairos (2011) with the band.