Wow, I can't believe this topic is on. I was going to start one. I have a Janome 6600P. Don't have the blue dot and have been FMQ on it without much problem except when I try to mix thread types. It seems to be very sensitive that way. My new problem is I was making pocketbooks that you put batting on the back of the front fabric and FMQ it before putting it tog. Well without a bit of back on the batting it would not quilt for beans.When i went on my sample piece with 3 layers sandwiched it worked fine. Has anyone else had this problem.