The present invention relates to a double backbone core for automated hollow door manufacture and a door comprising same. The cross section of the lifting slat in the width direction has the same shape as that of the main slat in the width direction. For example, bursty or Aloha traffic may limit the power being used to transmit data in a channel. Further, the example method includes, in response to the comparison of the first and second results, modifying the first results based on the second results to improve a quality of the first results.