Skylark,
I was thinking some more about this & realized that if you are ironing on the bias, that can pull it a little out of shape, but I always figure that's why we square things up as we go. Pressing is ideal & it's what I usually try to do, but old habits die hard and in any case it's a minor issue that is easily remedied if it ever causes a slight stretch.
btw -- I'm kind of jealous of all your beautiful machines.
