I'm considering buying a Redline road bike with dual disc brakes. There's a particularly twisty & gnarly (poorly paved) mountain road nearby I climb daily. Descending the long 8% grade is too fast & jarring; I'm guessing disc brakes will give me the Cadillac power brake effect. Anybody use discs? Do they provide one-finger power braking? I do my own maintenance & I've read bicycle discs warp & eat pads. That's OK as long as I can get tools & parts.