Their first single, Suspect Device, was packaged in the form of a cassette bomb (causing one record company to accidentally throw it in a bucket of water, thinking it was real). It was locally released on the Rigid Digits label (this being a wordplay on their name) and Peel was sent a copy, playing it repeatedly (he included it in his list of records he wanted played at his 40th birthday party, 29 August 1979, and in later years, he would state that it had the best song ending of all). It was analogous to his heavy rotation of Teenage Kicks, although SLF and the Undertones were frequently at loggerheads. This led to a first session, privately recorded at a small studio at Downtown Radio in Belfast and broadcast on 13 April 1978: the band would record five in all. This exposure gained them