Producing for well over a decade, under guises such as the world renowned D&B outfit Hidden Agenda (alongside his brother Jason), later Mark moved to Switzerland in '98 to start-up his own label Zest, which saw mark move from drum & bass, to all things left of centre. Since than Mark has relocated back to the U.K doing mixes for Switch, Phonique, Trevor Loveys, loungin' and Freerange.