I remember that couple! It's Shelly Scott-Tobisch and Bernie Tobisch. I had posted a link to their appearance on The Quilt Show a few months back because the husband was a sewing machine technician and had such
fabulous information about sewing machine and tension issues and fixes. I haven't seen the glue available locally, will have to put a bug in the ear of my LQS owner.
Here's a link to the episode, which I believe is available to watch for free until Dec 31. The video shows both a demonstration of the glue, and the info about tension. Well worth watching.
https://www.youtube.com/watch?v=v2dPJqY7vHE