Right on. Should be a good thread. And I respect your opinion on things, as you seem pretty level headed on any subject I've ever seen you post.

Anyway. I observed an odd one a few weeks back. This particular trail actually dropped in elevation into the cloud deck under it. Literally cutting through these clouds, and leaving the appearance of a double trail. Until it dissipated, and the clouds expanded. I'm pretty sure "contrails" would NOT do something like that. Wish I had a video camera at the time.

As anyone ever observed such a thing?