Major success in the R&B/soul market was elusive until 1985, when the band released their Restless album. This album not only made them superstars in the R&B world, but it also brought them significant crossover success onto the pop charts with the Top 30 single "Object of My Desire." Co-written by bandmembers Kayode Adeyemo and Ernesto Phillips (along with noted R&B musician/producer Keith Diamond), the tune also became Starpoint's first of several R&B top-ten hits. The follow-up single "What You've Been Missin'" followed "Object..." into the R&B top ten. The title track "Restless" was also released as a single and did decently on both the pop and R&B charts. The band embarked on a lengthy tour in support of the album, during which Renée Diggs became well respected for her explosive vocal abilities, with Greg Phillips also earning a reputation for his drumming skills.
Later in 1985, while the band was on tour and at the peak of their success, Renée Diggs was diagnosed with multiple sclerosis. While touring became more of a challenge for the band at this point, Diggs was determined to continue touring and recording with the band and living up to her potential. She remained with the band and persevered without sacrificing any of her exuberant stage presence.
In 1987, the band released their next album, Sensational. While the single "He Wants My Body" became the band's third top-ten hit on the R&B chart, it barely made a dent on the pop charts, and the overall success of the album paled in comparison to its predecessor. The band released two more albums before eventually breaking up in 1990.