I have used this method with great success. I have not put the flannel on the boards though- what a great idea. It will stop the quilt from sliding off the board. I watched the Sharon Schamber tute on UTube and now baste my quilts this way, for hand quilting or machine quilting. I got 2 sets of MDF in different lengths, at Home Depot and store them in a closet. I just use regular cotton thread for basting. This method is easy and saves crawling all over the floor.