Since they are over a year old, you'll just have to keep them and make do with what you have. A couple things I want to point out are:
1) Racquet heads can deform due to a number of reasons, the most obvious being string tension. Over the course of a year, the deformation can potentially be very noticeable.
2) Manufacturers have specification tolerances. 1/4" does seem a bit much, but if it happens to be in their tolerances, it's not a defect by their definition.