I use a Crop in Style navigator rolling case, not the XX large one. Thst is too big and the wheels are not as well placed as they are on the navigator
The original featherweight case fits nicely in the Crop in Style case. It helps protect the case from nicks and scratches. Also I don't have to worry that the handle will loosen or the latches pop open on the original case.
I found mine on Craigslist for $25. Seems as people change interest, more of the scrap booking cases are sold on Craigslist.