Hi wrldtrav2013 -

I've not heard of any bursting open, but I do use a strap around our Rimowa Aluminum XXL. The case still appears somewhat new, but was purchased in 1994.

The reason is that that model of case pre-dates the use of the TSA locks. Rather than leave it unlocked, the strap we bought comes with a single TSA lock to secure it.

Even though you are packing to " the brim, " keep the mesh dividers in place. They prevent the case from being overloaded and blowing out. If the center mesh dividers are used as they should, that would alleviate any Rimowa case from then bulging out and possibly open.