Original sentence: Although technically still a subset of the Glee Club, the Waiters operated at an unprecedented level of autonomy, and members often found themselves pouring more time and effort into their opportunities as Waiters than into their duties as Glee Clubbers.Finally, in 1956, the Waiters made it known that they were quitting the Glee Club en masse to shift their full efforts to maintaining their success and prestige as a pioneering a cappella organization.The Waiters continued at their breakneck pace of rehearsals, performances, and tours throughout the mid 1950s.The earliest Waiters had maintained good standing in the Glee Club, but with each successive entering class, this commitment faltered, especially in the face of the new wave of a cappella groups eager to dethrone the Waiters
Edited sentence: Although technically still a subset of the Glee Club, the Waiters operated at an unprecedented level of autonomy, and members often found themselves pouring more time and effort into their ambitions as Waiters than into their duties as Glee Clubbers.Despite the deleterious effects this "double life" began to have on their Glee Club obligations, the Waiters continued at their breakneck pace of rehearsals, performances, and tours.In 1956, they made it known that they were quitting the Glee Club en masse to shift their full efforts to maintaining their success and prestige as an a cappella organization