Pretty sure I found a bug (that I haven't seen mentioned)
Riley is coming up 5 pts short of where I'd expect her to in the Gym.
750/750xp @ lvl 5, 5 room, 5 item, 10 Fitness freak, 5 Athletic.
I expect her to hit 85, she's only hitting 80. (Other girls in other rooms, also at 750/750, but with different ways of getting to +25%, do hit 85)
My guess is that the Fitness Freak and Athletic traits are not adding together. Only getting the 10 from Freak.
I can't test Annika's Yogi / Flexible on this playthrough. I'm already past that point with her.
But I think I'm seeing the same issue with Catalina's Exotic / Popular. Less sure here, only tested it once before going back to an earlier save.