I recently bought a pair of the Piggy back Strapz and must say how easy these are to use and never once did i feel they would come off. In fact, once i'd strapped everything down on a recent trip, i didn't even think about them again till i had to unstrap them.
The idea of these strapz to enable adding items at will is a great idea.
Bloody good product.
KTM '05 640 ADV