As I was reading Sheldon's article about Cantilever brakes
I became a bit confused reading these 2 seemingly contradicting passages.
"The more mechanical advantage you have, the closer the brake shoes will be to the rim at their rest position."
"On touring bikes with high-mechanical-advantage "æro" brake levers, excessive mechanical advantage may cause the brake to run out of lever travel, so that the lever hits against the handlebar. Shimano makes an extra-wide cable yoke for such applications, but you can achieve the same effect by lengthening the transverse cable, unless the bike has such a small frame that you run out of room."
How can the brake run out of lever travel if excessive mechanical advantage means that the brake shoes are closer to the rim at their rest position?