I tried to go for the outer limit on tire clearance with a standard reach brake caliper. Seems not all brakes are created equal so some brakes calipers are coming up short. Real close to the tire. This is resolved with the next batch of forks coming out due out soon. You loose some tire clearance but get more brake choices.
Tektro standard reach calipers seem to work. If you ask nice I can hook you up.
Tony