If you are going to travel all over the quilt top with your quilting, you might consider basting a little more heavily. The goal is to keep the whole top stabilized to prevent stretching and puckering. If I was going to go from area to area, I might do an area or two and then lay it down and look to see how it lays and check for any puckers that may be starting. Or do some SID to stabilize and then go on to the FMQ You could also use wash away thread to do additional basting. :D:D:D