imo cryo's yoru definitely could use some work, and he's only played two games on yoru and the one he did well on is against a lower end team. His iso, on the other hand, looks more polished (and is WAY easier to learn). Asuna's yoru is also pretty decent, so here's what I would personally run:
[Perma ban fracture]
cryo - iso (haven, split), chamber (lotus OR run iso on lotus), Jett (ascent, pearl (or run chamber pearl), icebox)
Asuna - yoru (haven, pearl), raze (lotus, split), kayo (ascent, icebox)
Boostio - kj (haven, icebox), vyse (lotus, ascent, pearl), viper (split)
Zander - omen (haven, lotus, split, ascent), astra (pearl), viper (icebox)
Eeiu - sova (haven, ascent, icebox), fade (lotus, split, pearl)
Basically, the idea is to keep boostio on his comfort pick of senti, cryo on mainly iso chamber and Jett as those seem to be his best agents (since yoru has proved to be inconsistent), asuna on either raze or flash agents (no gekko since gekko proves to be a bit of a challenge). Zander and eeiu have good picks as it is, so no major changes to comps there. Fracture is perma ban because, ideally, you want to run double initiator and raze/neon, but Asuna can only be one of those at a time.