Petra's decline musically started with Unseen Power in 1991. Brown Bannister gave them a brief shot in the arm with Wake Up Call in 1993, but No Doubt (which reunited them with the Elefante brothers) was a horrible disappointment. The best track on the album is 'Think Twice' which comes close to sounding like Nine Inch Nails. The rest of the album contains a tired mix of formulaic Aerosmith styled rockers with what have to be most soulless ballads ever put to tape in Christian music.Petra have always chosen to take a 'vehicular' approach to its music - ie the music is no more than a 'vehicle' for communicating its message. Sadly, this has resulted in the most mediocre of art.