your free motion quilting is great. I tried free motion on my home machine but my stitches looked puckered. Granted I didn't change the tension (a little afraid to frig with it) or the stitch length. Are we suppose to change the stitch length and what would or should the tension be. I have a Janome 2160 QDC. Anyone have one of them. I won it from Fabricland a couple of years ago and just love it.