I've been working on this. I have an aluminum IEM case similar to the one mentioned that I've taken to meets that never got used aside from holding extra third party cables and tips. The issue with cases like the one mentioned (and my aluminum case) is that there are not a lot of slots for a multitude of IEMs. Also, having a few in each slot and constantly wrapping them up and putting them in and out isn't very efficient to say the least. Cases are actually a huge issue for me when showing IEMs. With that said, If I'm able to show IEMs at the next meet, I would more than likely want to purchase IEM stands like FAD does at meets and forgo all of the cases completely.