I have 2 old quilt tops that I want to hand quilt. I will be quilting them on a quilting hoop. I need to start from the middle and work toward the edges. What type of pattern should I use in order to keep the antique look for these quilts? I thought of a clamshell, but I am not sure if I this pattern can be successfully quilted from the middle outward. Any help with patterns would be welcome.