That mountain must not have been like the two my Wife goes over every day to work, and back home. I've had both of our Cruze's shaking badly going down either side. This is with both stock brakes, and EBC blank rotors with Hawk HPS pads that were bedded to the letter of Hawk's instructions.
I start at roughly 30-40 mph at the top, and by the bottom you have to use the brakes a lot because these cars just will not hold themselves back. When you get behind someone it's even worse. You can let them get ahead of you at the top, but by the middle to bottom of the mountain you have to be all over the brakes because they're poking along at 25, and the Cruze acts like a run away train because there's no compression braking.
For me personally I see no con's to the slotted rotors. I've had them before with no problems as far as brake shake compared to blank rotors. Now if I lived out where it's flat I definitely believe that blank rotors would suit me just fine.
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