[Camron Rust]

Simultaneous actions don't imply that neither one touched the ball last but, instead, that both did. The handling of these cases (OOB example) is not because a team was not last to touch but because both are in violation of a rule and both are to be penalized. Both infractions are to be penalized but have conflicting penalties (possession). That fact forces us to the AP arrow.

Therefore, to have a backcourt violation doesn't require that team A be that sole team to last touch the ball. Only that the other team didn't touch it after them.

In practice, I'm probably not going to be able to tell that precisely and will only call it if they obviously touched it last and alone.