Jenniky, I have been working on my Stars Quilt while waiting for some fabric to come for my baby quilt border. I had a devil of a time trying to figure out what size the back sashing should be. The front was 2 1/2", and trial and error found that about 4 1/4" worked pretty well, but really should be a little larger. Is there a formula you found or that you have figured out that works for the back sashing? I'm sure this would help a lot of us.