I was trying out Kaye woods 6 hour quilt method using some scraps… My sewing machine skipped some stitches. It is weird I am sewing often enough to hear the stitches being skipped.. My husband thinks I am weird. Anyway it is happening when I am going over seams so it would be 6 layers of fabric and 3 layers of (thin polyester) batting. My manual says this could be due to the needle size not being correct for the fabric. I am using 75/11. The fabric is thin but multiple make it thick. I am thinking moving up to a larger needle would work but would this be to much needle for when I am only working with 3 layers. I would hate to keep changing the needle every few minutes. Can some one advise me??