In 1995, at the tender age of fifteen, Derek Christoff was already building a name for himself as D-Sisive at Toronto's Planet Mars open mic nights while further decimating the competition on the Eat the Beat freestyle battle segment of Mastermind's infamous radio show at CKLN 88.1 fm. His studies continued under the tutelage of Planet Pea and the rest of the Cryptic Souls Crew, sitting in – and soon participating – in recording sessions with the likes of Double Soul, DJ Serious and Abdominal.