I wondered if anyone had tried one of Tom and Will trumpet cases:
http://www.tomandwill.com/ProductDetail.asp?ProductID=22TP%2D555&Cat=Cases+%26+Bags+%2D+Trumpet as a case for as set of NSP? On paper they look about the same size as the rigid case I already have. I suspect the issue might be getting the bellows in the bottom?
I do like the idea of a separate music case and being able to carry the whole thing on my back though.
Sorry, especially in my first post to potentially set the cases thread off again!