Although filling in the spot of rhythm guitar in 1999, Root is considered to be one of the band's main songwriters and has written lead guitar parts for Slipknot's later albums particularly on All Hope is Gone and . 5 The Gray Chapter (from what has been said it seems like he wrote the large majority of the songs). Of Slipknot's nine member lineup which lasted between 1999 to 2010, Root was the last to join the band. Root typically performed lead guitar in Stone Sour, although he sometimes played rhythm. He has spoken of both bands' guitar style as being twin guitar: "In both bands, I fulfill both roles. In Slipknot, Mick [Thomson] has some solos, and in Stone Sour, Josh [Rand] has some solos. " During the recording of Stone Sour's Audio Secrecy, he and Rand recorded their parts simultaneously.