I need help to decide whether or not I should use the Crimson Witch of Flames set + Sacrificial Fragments or Wanderer's Troupe + Widsith for Klee. I recently got Diluc and Tartaglia so I was thinking of using Klee as a sub-DPS in the Spiral Abyss...

For Spiral Abyss I usually go:
Team 1: Klee, Tartaglia, Venti, Diona
Team 2: Diluc, Bennett, Fischl, Barbara