As a windsurfer I always accommodate a lot of luggage. The system allows me to put surfboards and sail bag next to each other on the roof. A small drawback I see is that each holder shall be completed separately. Other systems require only two locks. Very theft seems to me the locking system not to be. But cracking the 4 castles and screwing probably require so much time that it would discourage any thief. I would buy the system at any time.
