Originally Posted by Wheever

That doesn't really apply in my situation. I've ridden all sorts of rim brakes for decades, in various states of function. And I've ridden my disc bike when the rear pad was contaminated. Even contaminated and screeching, the disc brake still only operated as badly as a crappy rim brake. I could stop the bike with just the contaminated rear brake. As a matter of fact, the day I tried my first disc bike (a Domane 4.5 that I subsequently bought!) I had been trying all sorts of high-end bikes (which I couldn't afford) including the salesman's personal bike which he races, and the first time I braked hard on the disc bike it blew them all away. I couldn't believe the braking force I could generate with just my index fingers. Would have required a handful of fingers to get that much braking force with rim brakes.