priorities 1. Pushed->Released 1. Pushed->Released 2. Waiting->Increasing 2. Waiting->Increasing 1. Pushed->Released->2. Waiting->Increasing 3. Increasing->Increasing 3. Increasing->Increasing 1. Pushed->Released->3. Increasing->Increasing 4. BurnerSelect->BurnerSelect 4. BurnerSelect->BurnerSelect 1. Pushed->Released->4. BurnerSelect->BurnerSelect 2. Waiting->Increasing->4. BurnerSelect->BurnerSelect 3. Increasing->Increasing->4. BurnerSelect->BurnerSelect 0. Released->Pushed 0. Released->Pushed 0. Released->Pushed->4. BurnerSelect->BurnerSelect