If it's a simple crack, and especially if it's in the middle of a tube, Calfee can probably repair it so that you'll never know the difference. That Pinarello is painted, right?
I just sold a Calfee tri bike, and I sent it to them on two different occasions for repairs: once for a cable stop that came unglued, the other time for a rear brake bridge. Each time, you couldn't tell where they'd added material. They show some examples on their web site of some "interesting" repairs, to say the least.
Oh yeah..count on it taking about 4 times as long as they say it will take. They're really nice on the phone but they're not very organized.