i do mine a little different.I serge all 3 layers together.Made a bunch for grands.I took a panel small or big i lay batting under panel then backing on top off panel right sides together and serge then flip the backing over and serge all 3 together.Make sens??and then the same system again always backing on top rst and when flip backing to back sew all 2 pieces of the ready piece together with the 2.piece and so for.