Many thanks to SWLing Post contributor, Nick Boras, who shares the following:

I was motivated by one of Tom Styles videos (hamrad88) about Sync detection to make one of my own. It is no secret that Tecsun offers Sync on several of their radios but only the 660 and 680 really work. My take on Sync is that the results are not consistent even on some of the highest rated Sync radios. While my video is not scientific or nearly complete, I think it gives a good representation of what we can expect from Sync for SWL.

[In addition] today was Radio Day, so I made another video on a very interesting radio:

Thought your readers might be interested.

We are indeed! Thank you for sharing these videos, Nick! That Racal, by the way, is a beautiful beast of a rig!