Not really. Once I position for the first one, the rest are easy. In the old days, I had been doing this starting at MRU. Loved that the BA staff there misunderstood the rules, thus allowing us a routing which wasn't [supposed to be] permitted. Haven't done it in a number of years because of the cost. I got an AONE3 or 4 (I can't recall now) for around USD $5K ex-ICN during the anniversary sale, but that was a number of years ago. At these prices, however, I can't pass them up.

I commute more or less every other month between UTH and various points in the U.S. (mostly BOS, JFK and GSO).