I square my quilt when sewing on borders and again when I get back from LAr (I also add about 1/2 " into the width of the last border to allow for squaring). I think that's the difference for most who do their own quilting and those that send it out. I want to be sure it's squared for the LAr and if I was doing the LAing myself I would already know and wouldn't square it until its quilted.