I've scored a Syntace Brake Lever for my bullhorns a few weeks ago. They are designed to run the brake cable inside the handlebars, so I need an exit hole. In the past I've seen handlebars that have been drilled for internal routing - often done by the owner, not the manufacturer. I already know that Syntace makes bars for this lever, but I'd like to avoid spending more money.
Anyone out there drilled a hole in their handlebars for themselves? How bad an idea is this? Where would be the best spot on the bars to put a hole?
Any constructive advice would be welcome.