Bicycle Mechanics - V-brakes with wide rims

I have a faint memory that there is some way to adjust/modify my XTR V-brake setup to work more efficiently with my Mavic D521 rims. Can anyone lend any insight to this issue?

Look at the sequence pieces on the pad studs. There are concave/convex washers on both sides of the V-brake arm. There's a small concave washer on one side and a large concave washer on the other. If the large one is on the "inside" of the arm (toward the rim), you can simply switch positions of the two, and it will effectively move the pads further apart.

Thanks, madpogue, that makes perfect sense. Unfortunately, upon inspection I found that the washers are already set up with the large one on the outside. Looks like I'll have to take comfort in the fact that the more my pads wear, the better I'll be able to stop. :)

I don't get it. Are they too close right now? Or just not hitting squarely on the rim surfaces?

I figured the greatest mechanical advantage would occur if the arms were parallel at the point of pad/rim contact. Right now, they're splayed out a little at that point.

They'll be okay, though. I'm talking a couple millimeters, and I just wanted to make sure I was getting the most out of the setup. I've had a chance to ride them, and the modulation is fine (love those ceramics :) ). Now if I could just stop that ungawdly squawking from the front . . . ;)

Thanks again.

You need to adjust your pad toe in to eliminate squeal.
http://www.parktool.com/repair_help/howfix_linearbrakes.shtml

Thanks for the link. . .it was just a matter of the old pads wearing in to the new rims, which occurred in the first thirty seconds after diving in Snowshoe's new mountain bike park this weekend.