Whilst I am sure that your storage system is more then adequate and safe for normal use, what about when things go tits side up.
Hit a ditch at 60mph then is your fasteners strong enough to keep every thing out of the passenger compartment? What about that can of beer/beans/shackle etc that you have just tossed in the back? Can quickly become a lethal missile.
Also a load guard does provide extra storage space.
Just my tuppence worth
Regards
Leeds

