Jenniky - I like your new dark blue that you labeled F. I think I agree with the comment about a blue and white quilt. Do you have enough of the old E to make it the new D?
CarolineS - the more I think of it, when I was experimenting with the new ruler, I tried to cut them 5-1/4 but made them too wide and needed to keep nipping off a piece before cutting a new block. But I think I made them 5-1/8" - seeems silly, but it was better.