Not sure if I'm completely understanding the situation, but would another way of describing this problem be to say that the callback (into HelloworldXComponent) is resolved too aggressively in the binding.sca implementation?
If the forward call were coming into a composite-scoped component (HelloworldXComponent) over something like <binding.ws> then you'd have to dynamically look at the incoming message in order to determine the callback endpoint. Is it that in the <binding.sca> case it's resolved too early? Scott
