I just returned from a trip to Germany a few days ago. The flight was LH422 from FRA to BOS. As usual, the aircraft was a 747-230B. While in FRA, I realized that LH seems to operate a larger number of -430's than -230's but I have never seen a LH -430 in BOS. Have they ever flown them there? I'd love to see a photo of a LH 747-430 at BOS. I noticed that Virgin seems to alternate their between the 200 series & 400 series on their flights there.