I was perusing some auctions, and came across this (drewed) Olmo SS. (Not interested, just looking.) But what caught my eye was the drop-bolt for the rear brake. It looks to be a DIY job, if I'm not mistaken. I remember someone else here fashioned their own drop-bolt as well but couldn't find that thread. Seeing how scarce and expensive the genuine Campagnolo drop-bolts are, I'm surprised we don't see these improvised drop-bolts more often, rather than replacing with long-reach calipers. Anyone else make or seen a DIY drop-bolt? Do you think the one pictured below would work or would this be likely to swing side to side? Discuss...