I'm in the process of removing accessories from my Multistrada, including the top case. I've removed the lock barrel so I can leave it with the bike when I trade it in a couple of days. The question is; should I leave the small screw which goes in the end of the lock barrel with the barrel or with the top case? Does the screw come with the "spare" lock barrels or not? I think the screw stays with the top case lock parts but I'd like confirmation if any one knows for sure. Thanks in advance,