I think that after all of the favorable testimonials given here, in addition to all of the positive BB7 reviews, we can all safely conclude that, if the BB7's are properly installed and set, they'll make for very effective brakes. That's especially so, if compared to other mechanical brakes when stopping under wet conditions.
References:
http://www.bikeradar.com/gear/catego...rotor-10-37621
http://howtosetuptheavidbb7.weebly.c...-avid-bb7.html
http://www.singletracks.com/mtbrevie...d/BB7/783.html