I've seen this before. I still say pinning is much faster and I don't have to manipulate those boards. I use my cutting table, plastic spring clamps that I bought from Lowe's and big brass quilting pins. I smooth and clamp down the backing, add the batting and smooth and reposition the clamps onto the batting, position the the top and reposition the clamps and pin away. It is much faster for me, but then we all have our own way of doing things and there is nothing wrong with that. It is always nice to observe how others do things because you never know when you will pick up on a faster, easier way of doing things. This way really saves my back too, I must say!