Worst advice I got was to set my stitch length to 7 stitches per inch because since I was a beginner it would be easier to remove the stitching when I made a mistake. My first couple quilts were a nightmare because the seams would split at the ends of the blocks. I would have to resew them so I could finish the next part of the quilt where the same thing would happen. Now I sew with12 stitches per inch. I'm much happier.