When i got my 6700, i picked it up from the store myself, so no shipping was involved.
I pretty much have no flashlighting, so maybe it does occur when it is not shipped correctly, not sure though, it is just a guess.
The only problem i have with this tv is not having the trumotion option.
UPDATE: i just off the phone with a LG rep again, and this time i was told that the update would come out june/july. They said the engineers are working on it, but i'm not sure if they really are, or if the rep is just saying that.
I encourage anyone with this tv, to at least call one time and complain about not having the trumotion options.