i don't think the starch is a necessary element in your 'equation'...what is the starch step for? use the dryer sheet like an interfacing- where your stitch it around your shape (right sides together) cut a slit in the interfacing & turn your piece right side out- so now the interfacing is on the back & your edges are finished--press nice & flat--spray with your basting spray---stick down on your background & stitch around your piece...where were you planning to add the starch? i don't understand that part???just wondering---maybe i'm missing something important???