I have my rows ready for a 2-color bowtie quilt using 5" squares. The outside of the quilt will be bordered with 5" square bowties probably lying in the opposite direction of the big squares.

So, I want to put a solid color between the large and small blocks. Would it be easier to add a sashing to the large blocks rather than using a border? I am thinking sashing, because then I would have a large bowtie, sashing, and then the two smaller blocks. I think that it would keep the rows straight. Opinions please.