Out of interest, is that post mount brazed on or bolted on? I have a terribly inefficient rear axle drum brake on my Rogers that provides at best mild retardation on a gentle slope but little more, despite fiddling about with cable adjustement, travel, cleaning, etc. I'd quite like to switch to two front brakes and perhaps save a little bit of weight. If the front canti cable snapped on a steep downhill I shudder to think of the consequences...