Thank you for your advice. When I go into settings, there is all kinds of choices for types of paper to click on (photo, cardstock, postcard, etc.) but nothing for thin for foundation piecing nor a setting for paper backed silk or heavier weight. Although I just now thought I wonder if I should try clicking on cardstock which is thicker? The paper backed silk was not cheap and I have crunched up four pages so far.
I'll let you know how it goes, Sheree