Currently I switched out my Risako SR for my Ayumi SR to level it and compare scores (Risako being Berryz but having Positive Heart, and Ayumi having High Tension but being Morning Musume). I think I still get higher scores with Risako, but Ayumi isn't quite up to her level yet for me to say.
So my current team is:
Chinami SR (High Tension Mid), Ayumi SR (High Tension Mid), Akari SSR (Heat up Mid), Captain SR (High Tension Mid), Maasa SR (High Tension Mid)
Momoko SR (Heat Up), Maimi SR (Heat up Mid), My Idol (Heat up Mid), Mai R (Heat Up Mid), and Sayu SR (Positive Heart)
Momoko's SR being Heat Up - Low, and Mai's R being Heat Up - Mid is bothering the crap out of me.
Mai will be switched out when I have enough points to bring in SSR Yuka or SSR Chisato. However, SSR Yuka, SR Rina, SR Chisato, SSR Chisato, and SR Risako are currently benched