If you have poufy blocks I would steam the heck out of them to shrink into shape. Sometimes I wet them too. Do this before you use your spray starch. Ironing is dragging your iron back and forth on the fabric. Pressing is putting your iron straight down only, no back and forth or side to side. pick the iron straight up, check to see if it is dry. If not, repeat. When dry, more to next place and do it all again. Some people spray the whole top and let it dry on the ironing board. Then use steam to PRESS it.