Paul received his Rickenbacker 4001S during the Hollywood Bowl concert in August 1964. The bass had been shown to him in February of the same year, but Paul was not particularly interested. The fact that none at Rickenbacker had noticed that Paul was left-handed may explain his previous lack of enthusiasm. The Rickenbacker bass was also heavier than his light-weight Höfner which may have added to his reluctance to accept the bass earlier. It served as a backup for live dates in late '65, and for the '66 tours, but in terms of recording, the Rickenbacker had become McCartney's bass of choice. He used it liberally on Revolver, and, later that year, for "Penny Lane" and "Strawberry Fields Forever," and for the rest of the Sgt. Pepper sessions. For the release of that album, McCartney gave the bass a psychedelic paint job, and used it that way on record and in videos until late '68. McCartney resurrected his Höfners for ‘Let It Be’ but returned to the Rick -now sanded back to a natural finish- for Abbey Road, and in his solo career has played it on numerous albums and tours. In Bart's opinion, the Rickenbacker is so radically different from the Höfner that it requires another amplifier (the Vox AC100 instead of the AC50). The Analogues use two Rickenbackers; one of them with dampers to recreate the characteristic ‘plonky’ bass sound of Sgt. Pepper's.