I just finished a rail fence Christian Cross. I couldn’t find my pattern so I worked from a pix. I got quite a way along when I realized I hadn’t used the right length of strips. It really affects the finished cross. So I had to tear out the ends & figure out where I’d messed up. Then add too each pc. It was hard because you use opposite order of strips on ea side. I almost tossed it out but couldn’t let it defeat me. It’s all finished now.