I'm still getting into this, still use a front brake. Just got aluminum Nitto Horns for my ride, bought a Syntace bar-end brake lever off ebay. Want to use em together. Problem is, the horns aren't intended for brakes at all, so I'd have to drill a hole into them to accomadate the brake cable. Does anyone out there use this setup? Would I be doing serious damage to the horns if I drilled into em? Is it really bad to run a brake line through bars without cable housing? Any suggestions?