I almost always cut my block slightly bigger and then square them up. I know that my 1/4 in seam is not always accurate, fabrics stretch and on and on. So, I cut just a little large1/4 to 1/2 inch and after pressing, I square them up to perfection. Yes, all of the blocks are squared up not just the wonky ones. I see similar directions in many patterns and tutorials. Made a quilt of nearly 500 HSTs and after taking the time to square them up, the fit together perfectly and the end result pleased me to no end.