DenniSMC, nice loops! I think they will hold. Plastic cases are not that bad. This summer I had a spill on my Moto Guzzi, the affected case ended up with some serious rash and loose hardware, but wasn't affected functionally. And those Aprilia sourced cases look much flimsier than Varios.
Since we are talking about caring for the cases, I found a thread about cleaning the expansion mechanism: http://www.advrider.com/forums/showt...51#post7282851