No rebuilding calipers doesn't solve the problem. The configuration of the "hat" of the new rotors is such that it just barely rubs the side of the seal and wears it away. Only clearancing the hat so that it doesn't rub the seal will fix this. As far as I can tell all the different rotor manufacturers have this problem even though their rotors are different from each other. I have been following this thread for a long time hoping to find a new rotor source that fits without work, but so far no luck...