I think they both aligned pretty well. The trails had spread out before you captured them and both lines are within the spread. Both planes past the crossing point at practically the same altitude of 37,000 feet. The "green" plane was still ascending at this point, but its trail was formed first and may have sunken a bit before the "red" trail was formed, therefore this trail appears lower, as I pointed out yesterday. The trails were similarly dispersed because they were in the same atmospheric conditions.That is extremely close, but I am not convinced.
I think the red path is lined up, but not the green one. What were the differences in altitude? In the video, it appears that the corner of the trail disappears around the same time. If this trail were two planes crossing, I would expect to see more dispersion and more differences. This trail is nearly equal in width on both lines. What kind of planes were the one's flying?
The "green" plane was B757, and the "red" one was A320.