Hello. Welcome to the quiltingboard from Crump, Tennessee. I used our search field (sashing) and read many of the post we have on sashing. I didn't see anything that brought her method to mind. I did learn a lot of tips on sashing and enjoyed that. Sorry I couldn't be more helpful./Regards, Dorothy
(While we wait for others to offer ideas take a minute to watch this video from Bayside Quilting called 'Fun and Done'.
http://www.quiltingboard.com/
It is really good./Regards, Dorothy)