Welcome to the board from Southern California!!!
I like to use a serpentine stitch, centering over the seam line but it goes onto both sides. Can't tell if you are not perfectly centered. I also do a lot of diagonal stitching across the quilt with a fun stitch.
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My newest Grandson, Caleb Austin, was born May 29th. I am now Grandma to 4 precious babies. I am so blessed!!!!