Ex-Flotsam and Jetsam bassist Troy Gregory replaced Kirkland for 1991's Prove You Wrong -- which featured another strong single in "Unconditional" -- but was essentially a creative holding pattern and lost some of the band's momentum. Gregory was soon ousted and supplanted by two ex-Killing Joke and Murder Inc. members in bassist Paul Raven and keyboard player John Bechdel for 1994's Cleansing. Containing arguably their best work, the album saw a slight change of direction towards a more industrial sound, with Victor's precise riffing making way for a greater sense of groove and melody. It did little to increase the group's commercial appeal, however. Prong would disband following 1996's less inspired Rude Awakening. Parsons then went on to join British industrialists Godflesh while Victor toured with goth-punks Danzig, but rumors persist of an eventual Prong reunion. ~ Ed Rivadavia, All Music Guide