I had a full givi tubular setup on by Blackbird, water got into the tubes and it rusted from the inside out. Welded and powder coated 6mm steel is far superior in my opinion.
So, still waiting for 3 vtec valve buckets ex Japan so the bike is still in bits on the lift, I’ve been wanting a top box carrier for a while as I’m using the bike to commute during the summer months and the ones in all the usual places (fleabay) et al are all to expensive, so I welded up my own design in the garage from scrap I had loafing around. When the bikes reassembled and dressed in red I’ll post up some pics of the box too.