I have FMQ about 11 quilts. You can tell which two were my firsts. because of some pleating on the back. I have a Sapphire 850. I started out spinning the quilt around and when I did my last 4 kings I tried something different. I took blue masking tape across the middle-- went to the center and quilted side to side. Flipped the quilt around and did the other end. It really helps to draw out your pattern on a piece of white butcher paper and hang it where you can glance at it especially if you are doing leaves, stars or a pattern. It has been said before look ahead of your needle not at it. The nest on back I believe are thread and tension issues. I get occasional eyelashes think that is due to speed, going to fast in the curves. Keep at it you will either love it or not. Someome said the magic genie washers will help the nesting problem.