[eternauta3k]

From the patent referred to in the article:

"The present invention is directly applicable to a quasi-GTO having any given inclination but is especially advantageous to a satellite launched in either March or September into a highly inclined quasi-GTO because the lunar flyby is capable of removing all of the inclination"

Not very helpful. From another patent ( http://www.patents.com/us-6149103.html ):

"If the satellite 10 had been launched in March or September (around the time of an equinox), the lunar flyby could be timed to occur when the node of the moon is close to the node of the quasi-geosynchronous transfer orbit, so that the earth return orbit has an inclination near zero and the inclination of the orbit of the satellite about the earth could be completely removed by the lunar flyby. Launching March or September is advantageous for satellites or spacecraft because of the sun being normal to the required attitude of the satellite."