I'm all for modifications, being a machinist myself, but that would scare me. There would be jsut as much stress along the whole length of the bar I would think. Just more likely to bend/break at the stem clamp or riser bends. And if the least stressed point was the end of the bar, drilling it would just bring it closer to being the most suseptable point to break. It'll *probably* never break, but who knows. Hope it works though and you don't face plant into your stem someday from the bar snapping. That would suck.