Interestingly, Roux said yesterday that whilst there was provision to claim costs for the sentence application failing there is no provision for costs if the application for the reservation of a question of law failed. So they don't get costs on the ammo if I understand this correctly. Not sure I understand why they would be treated differently.
Yes - you could well be right about that.
It will all be in the rule book - we had that other poster who was very good on this stuff!