 In 2014 he moved to Warwick basses and started work on a signature model based on his Washburn with the Warwick Streamer model shape.Hamm's slapping, popping and two-handed tapping techniques are demonstrated on his solo recordings as well as in his instructional videos "Slap, Pop & Tap For The Bass" and "Deeper Inside the Bass".A popular part of his live performance often includes a two-handed tapping arrangement of Vince Guaraldi's "Linus and Lucy" (from the animated television special A Charlie Brown Christmas).