Worst case, you could add some 'accelerated' wear with a file or Xacto knife. Lightly trim away any sharp edges on the pedal clips or cleats where they overlap. It'll happen naturally through use anyway. Shimano SPD-SL pedals get noticeably smoother clipping in and out after they have been cycled a few hundred times. I imagine any other pedal system that uses plastic cleats is similar.