Thanks for that Ruth - interesting re the poly batting. I always thought it was written in stone that seams MUST be pressed to the side in ALL patchwork until I started doing One Block Wonders where you have 6 or 8 seams meeting in the middle so press OPEN. Now I'm much more flexible in my pressing and will sometimes press open in 'regular' patchwork to get a flatter block. I never SID so don't have to worry about that, and I always use a shorter stitch length if I know I'm pressing open. But thanks for the heads up on the poly - will look out for that! :D