In September 1991, with enough material completed for two albums, Guns N' Roses released "Use Your Illusion I" and "Use Your Illusion II", which debuted at No.2 and No.1 respectively on the "Billboard" 200, a feat not achieved by any other group. By the albums' release, however, Rose's relationships with his bandmates had become increasingly strained. His childhood friend Izzy Stradlin abruptly left the group in November 1991; he was replaced by Gilby Clarke of Kill For Thrills. Of his reasons for leaving, Stradlin said, "I didn't like the complications that became such a part of daily life in Guns N' Roses," citing the riot and Rose's chronic lateness as examples, as well as his new-found sobriety making it difficult to be around other bandmates' continued alcohol and substance abuse. At some point during the remainder of the tour, Rose reportedly demanded, and received, sole ownership of the Guns N' Roses name from Slash and Duff McKagan; Rose allegedly issued an ultimatum—they had to sign the name over to him or he would not perform. (In 2008, however, Rose said these reports were false and that the alleged coercion would have rendered the contract legally untenable.)