I use the soft case with no problem. I have never been able to fit the handlebar/stem combo in it though. I stick it in my suitcase and put clothes in plastic bags and they fit in the bike case.
I also took a piece of heavy cardboard and cut it to fit the wheel side of the case, provides a little more protection for the spokes, never had a problem.
My big problem is with the lower joint. It bottoms out before it is tight enough. Ritchey doesn't seem to want to do anything.