So I have a question kinda related to this...I have always been confused about this...but when a pattern says stitch 12 stitches to the inch or 15 stitches to the inch ect., what is our machine set to example is 12 stitches to the inch set at 2.0...most common stitches to the inch is 12 or 15 so what number is set on the machine for these stitches?