Yeah, I wouldn't have any problem taking out that center line of stitching and doing something else if you don't like it. Last night I was thinking that you could use the 5" squares as an alternate block for the pinwheel blocks if you put four together as a four patch with a narrow horizontal and a narrow vertical strip in between them like a plus sign. Let's see: a four patch made of 5 inch squares would finish at 9.5" square, so those center strips would need to add an inch, thus need to be cut 1.5" wide. Good luck and have fun with whatever you do with them. I think the end product is going to be superior to what they would have been in plan A.