I replaced the cantilever brakes on an old mountain bike with V-brakes.
Problem is that when one side is flush on the other the rim is over 5 mm from the pad.

I swapped the fatter washer in and thin one out on that side, but it's not nearly enough.

With cantilevers the brake shoe can be moved in quite a bit, but there seems to be no way to do that with V-brake blocks.

I'd rather not try to redish the wheel, I've never done more than take bumps out of a wheel.
Is there any other option? Or am I going to have to put the old brakes back?