User blog comment:Zwann/Vasto Lordes in the Espada, let's analyze./@comment-1432572-20091110235521

@Rejuvination, the sheer fact that both Starrk and Barragan could use their abilities for such a prolonged time in a battle without being tired (like Soi Fon, Rojuro, Hitsuguya etc) is proof of their Immense Spiritual Energy. If it turns out that they WEREN'T Vasto Lordes, then the Shinigami should surrender and Ichigo should just do suicide.