Check it! My main man Whit-J dialed me into a pair of Discos he'd made (I believe with T-Brown) back in the day. I need to get the whole history of their genesis and I'll update this post. A few years ago, they cranked out these ingenious guides in Ti and carbon (and maybe aluminum?) which all but prevent chains from jumping. I'm honored to have a set! I used a combination of full spaces and 'sliver' spacers as the carbon itself is slightly thinner than the aluminum spacers.
Anyways, friggin' trick! Check it!