I know I'm not the first to suggest this but I want to mention it again because it seemed everyone is/was very positive about the idea but it hasn't been implemented yet?
It would be good to have the option for CC owners or the host of a tournament to cancel or edit a tournament after creating one.
Just last night I created a tournament and when I hit create a message told me that a description was required, when I put in the description the system changed my trophy cup choice back to the default which I didn't want. I only noticed once I'd hit create.
I would have liked to edit or cancel the tournament. It's not a big deal but it would be useful to be able to have this feature.