I am wondering if the background is cut away, doesn't it distort the circle shape? I made a dresden plate quilt earlier this year, but have not quilted it as yet. It has 3 sizes of plates, no sashing, just many plates all over. I had not planned on cutting off the background fabric. I was thinking the extra fabric would make the plate puff more and keep the plates from distorting.
Also, about the tin foil. Do you put it between the fabric and the cardboard, or fabric.cardboard.foil. then turn edges? Or scrunched between ironing board.fabric. cardboard? Not following. Thank you for clarifying.