I did this yesterday with a lap quilt. I only used one board, and the fabric stayed pretty nicely wrapped around the board just by wrapping it around it. I did not use flannel or anything. I diluted my glue a little so it flowed out of the bottle easier. I lined up the backing, wrapped on the board, on the top section of the batting. I put the glue on a three foot section of the batting, unrolled the backing onto the glued section smoothing it with my hands. I did NOT tape the batting down to the table. I then glued another three foot section, and unrolled and smoothed again until I had the whole backing glued to the batting. I let it sit a few minutes and once I was satisfied it was smooth, I flipped the whole thing over and did the quilt top the same way. This is the easiest and most smooth job I have ever done with a quilt sandwich. I used the same board for the backing and the top. Hope this helps someone.