I was a maggie fan and the thought of running a vee was silly, but I tried Adam Reads rear vee on one of his bikes and I was blown away, it was the best brake I have ever felt!! I tried it on my bike last year, but it didnt work out (partly due to using an overwide rim for my frame/brake setup). for some reason I decided to try a vee again at the begining of summer, it was the best desicion I have made brake wise! I dont get arm pump and it allowed me to get better comp presults (3rd in the worlds and 3rd in uk), I doubt I would have done so well with a maggie. Maggies are all well and good though, theres no doubt they work, but a vee has lots more positives, more adjustable, easier to pull, more powerful (especially backwards!!), can get spairs just about anywhere and so on and so on.