Hi all. I've just broken 900 miles on my bent, and the brakes are pretty wore. I see there are different materials used to make the avid bb5 pads. At first my bike would stop so fast if I wasn't careful it felt like it would throw me forward. After the first couple weeks, it stopped fine, but not nearly as well as at first. Which are the best replacement pads (for the bb5, it's not compatible with universal pads) that offer the maximum stopping power?