I agree - travel agents are suspicious, but for me they were the lesser of two evils. I couldn't fit calipers because I needed long reach calipers and those collided with the mounting points for the V brakes...

Those Campy Mini-Vs are gorgeous, but I'd be worried that they'd have the same issue as my old Tektro Mini-Vs did. Even though they require less cable pull than full sized Vs, you still have to adjust them to be a "micron" off the rim or the brake lever will bottom out. Even then, the braking performance is sub-par.

Then if you need to get the wheel on and off you have to actually pull out the hex-key and loosen the brake cable. It's not the worst problem in the world - but it gets really old really fast.

This is pure speculation as I've never used the Campy Mini-V.

Best of Luck.

-Ken