I'd beg to differ; the meridian ends at the north pole. By defintion you would be continuing on the antimeridian.
Given the following example however: a flight from 60N 000E to 60N 180E would have a GCTTin of 360T, however the rhumb line track would be either 090T or 270T, not 360, because it would then take you to the north pole, but not further, so it does not fulfill the requirements of the original question.
I do appreciate your points however and I am willing to admit I'm splitting semantic hairs right now. But that's kinda what General Nav is these days, rather than finding your way, isn't it...
