I had a closer look at the Yamaha luggage system for the Z yesterday. I like that it fits neatly on the bike and is fairly slim. Has anyone get any feedback on the strength of the system, in particular has anyone dropped a bike yet with this on ?

I do know someone who used the top box key in the side pannier by mistake and as it was the wrong key the key snapped off, is this good or bad?

Good as it means it did not open, bad in that the key seems weak?

I need some luggage for an offroad trip and if I thought the Yamaha system would stand up to the bumps I would go for them.

Any thoughts