I started out pinning my top as I was taught, but then heard from others about floating the top. It is much quicker to load the quilt this way. I use magnetic bars (found at Harbor Freight and covered with muslin) to hold the top in place on the bar next to me (called either the top or belly bar). I also use painters tape to mark the sides on this same bar. That way when I roll it, I can immediately square it back up. Works well for me. I don't have any cons.