I just got my first cyclocross bike, a sweet little LeMond Poprad. It, like most cyclocross bikes I've seen, came with canti brakes. I'm a bigger fellow, so on my first few rides I was definitely missing the stopping power of discs or v brakes. Now I've had some adjustment issues and a stripped tensioning screw, so I am going to have to replace or repair the front brakes at least. I am thinking about just installing some v brakes instead (front and rear). Is the some reason why you don't typically see V's on cross bikes? Weight only? I would gladly sacrifice a few grams for the added stopping power. Any thoughts/adivce is appreciated.