tried this method but DO NOT like working with squares with 2 bias sides! try to keep squares as square as possible in less you are going for wonky or modern. I know Jenny Doan does this method as well as 3 guys, if it works for you and your comfortable with it use it. Quilting is all about what works for you. Keep Quilting
Carol, when I work with this method or any method requiring an open bias I starch the heck out of that fabric/s first. It keeps those bias edges from stretching too much.
Eric The Quilter 
Damn. This is way helpful!!! Why can’t I ever think of these quick-tip things?
tried this method but DO NOT like working with squares with 2 bias sides! try to keep squares as square as possible in less you are going for wonky or modern. I know Jenny Doan does this method as well as 3 guys, if it works for you and your comfortable with it use it. Quilting is all about what works for you. Keep Quilting
Carol, when I work with this method or any method requiring an open bias I starch the heck out of that fabric/s first. It keeps those bias edges from stretching too much.
I’ve been making mine like that for years ,like it .