ok that is the story ,
it happend to a friend of mine while repacking to a slider down jump.
he opend up his packed rig pulled on the multi which was stored which these black rubber bands on top of his container basic research setup.
the first stow came undone the 2 did not and he was able to lift his rig off the ground holding his multi bridle it never came undone .this is what happend

note: multi velcro cover was in very bad shape it was ripped up pretty good
and the stows were pretty long about 5-6 cm.after looking at it the cover was all pulled up to a big wad and these little black rubber bands dont seem to brake .is this a problem i thing on a low jump it could have been a disaster you tell me .

please check your set up and change these black rubbers .i did.

claus