This is basically how a long arm frame works too. The layers are lined up and pinned at the top, the sides are smoothed across from side to side. Some stitch down the sides to hold the layers, I prefer to pin with safety pins. As the quilting is done the all of the layers are moved at the same time onto the top roller and you progress towards the bottom of the quilt. As long as everything is smooth and taut starting out and the edges are basted or pinned in some manner, nothing moves and there are no tucks or wrinkles when finished. It's the same principal as taping the layers to the floor and then starting at one edge to baste.