their song, "Babylon's Burning", de Whalley and the staff applied extensive flanging to the Edge's guitar tracks. Upon completion, de Whalley felt that the demos U2 had recorded with him were subpar. Sitting with Bono and the master tapes in the airport the following day, he felt that the flanger effect had not helped and that he had failed not only the band but also himself in his audition as a producer. He sensed that his bosses in London would not be excited by the recordings. McGuinness subsequently enlisted Robbie McGrath, the soundman for the Boomtown Rats, to remix the tracks. Release and promotion Hayden "was astounded" by what he heard from de Whalley's demos and grew more excited about U2 after attending another performance of theirs at Dandelion Market. Hayden spoke to his colleagues at CBS the following week and attempted to convince them that the buzz around the band was legitimate. However, certain representatives in the London office felt that the group would only be successful if they replaced Mullen as their drummer. Hayden then received a call from a CBS UK executive telling him to stand down and that the label's A&R department could "take care of U-2 and Paul McGuinness". Shortly thereafter, the label's London office decided to pass on the band. According to Hayden, CBS UK Chairman Maurice Oberstein had allegedly inquired if U2 could be profitable for the label within a year, but after an A&R representative told him the band would need two-to-three years to develop, he declined to sign them. Hayden met with McGuinness to inform him of the news and discuss the role the Irish market could play in garnering the band attention internationally. Hayden thought the group would need a distinctive release in their native country for it to be seen as "anything but another Irish single by another Irish rock band destined for the bargain bins". Hayden proposed releasing a three-track, 12-inch vinyl record in a limited edition of 1,000 copies, while McGuinness suggested a simultaneous 7-inch vinyl single of the same tracks. A meeting was subsequently arranged with CBS Ireland general manager David Duke to sign U2 to a record deal for Ireland only. Hayden traveled to London to meet with Graham, where he successfully lobbied for CBS UK to give the tapes of de Whalley's U2 demos to CBS Ireland, since the UK office was no longer