Ricky Tims does a one seam, but it ends up being 3 dimensional so you have a pocket behind the large V. Not my favorite.
Here's the link, and when you click it, just scroll down a little bit until you see "Choose your environment to watch this show". Just click one of the three choices the video will start.
https://www.thequiltshow.com/os/shows.php/episode/107]
https://www.thequiltshow.com/os/shows.php/episode/107[/url]