I agree with what you have already been told. I also love using the tape measure suspended overtop the quilt near the belly bar. I forget what it's called, but it has a zero in the center and measurements out in both directions, left and right. It makes it easy to keep the sides of the quilt straight. You'd be surprised how often you have to smooth the quilt top out to both sides from the center along the belly bar in order to keep the sides at the correct measurement. I also use my vertical channel locks when basting down the sides with each advancement, and my quilt top is secured at the top just the way Bobbielinks does hers. I also attach the bottom of the quilt top to the roller for it with Leadergrips. I have had customers remark that they have never had so little to trim off when squaring up the quilt prior to binding, which pleases me, because I work very hard towards keeping the quilt squared.