This was a fun build and has become one of my favorites to fly. There's plenty of detail on this one with the fins, fin mounts, and strakes. The fins involve card stock pieces over a balsa core. I sealed and sanded the balsa core before applying the cardstock pieces so the fins look smooth. The mid-body strakes really add to the unusual profile. This one always gets noticed on the flying field because of its unusual appearance. Flies great with C11 and D12 engines.