*shrugs* I've heard some very bad stories about what happens when those bungees age...
If you inspect them regularly, you shouldn't have any issues... replace them if they look old.
Then again.... if you hit a big enough bump, is there a possibility of the hooks coming loose? If so, I'd ditch them.
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"There is no greater wonder than the way the face and character of a woman fit so perfectly in a man's mind, and stay there, and he could never tell you why. It just seems it was the thing he most wanted." Robert Louis Stevenson
