Currently have 2 teams at 90. One team around 87. And since I have raf active, about 4 other teams at 80 and 2 others around 40.
Easiest thing for me is let rested accumliate once I get a team to this grind quest. While nonrested xp here is still faster than questing, it is very boring and would rather get another team up and let rested accumliate.
But I do plan on hitting this area with every team.