Also just ran the numbers using a calculator so could definitely be wrong but I looked at best team score using the average of the best two scores from Championships + Trials. I only ran these teams but got SSS Josc Kaliya: 174.25, SSS Josc Zoe: 174.025, SSS Josc Leanne: 173.775, SSS Kaliya Zoe: 174.25, SSS Kaliya Leanne: 174.
Leanne’s scores don’t count in either of the ones with her so I’m leaning towards her as alternate. For the first 174.25 I figure you’d be looking at VT: (Skye) Shi, Josc, Simone; UB (Josc) Simone, Skye, Shi; BB (Kaliya) Shi, Skye, Simone; FX (Skye) Shi, Kaliya, Simone. That’s kind of awful though because Joscelyn has to go on bars and then either Skye doesn’t get to do AA or Joscelyn doesn’t get to do floor which doesn’t make sense.
I feel like the other one could work though? VT: (Kaliya) Skye, Shi, Simone; UB (Simone) Skye, Zoe, Shi; BB (Kaliya) Shi, Skye, Simone; FX (Skye) Shi, Kaliya, Simone