Smear would usually play his parts on a baritone guitar, which would both contrast with Grohl and Shiflett and add a heavier sound - as Grohl declared, ``if we ever felt like a section wasn't heavy enough, we put the fuckin' baritone on it, and it became huge.'' Hawkins added many buzz rolls to _his_ drum fills at the suggestion of Vig, as buzz rolls were a trademark of one of the producer's favorite drummers, Ian Paice. <sep>, Pronoun: his <sep>, A: Vig <sep>, B: Ian Paice