I just got a single "soundwear" case from NYTC. I need a new single case that will fit the bigger bell on my horn. This case is built to be opened from the side 3/4 and has a reinforced bell area. It is light weight and very comfortable. The accesory are ais the right size, not to big and not to small. I carried it today and was very happy with its appearance and function.
If you are looking for a single case Id' check it out.

The horn slides in to a little "cave" and the flap has some nice padding that holds the horn in place. Kinda like a hotdog roll

In its little sleeping bag...........

Accesory pouch is a nice size.
Enjoy.
TD