1. Cubeful 2-ply    21/15 13/7(3)                Eq.:  -0.5988
       0.2777 0.0340 0.0002 - 0.7223 0.1337 0.0006
        2-ply cubeful prune [world class]
    2. Cubeful 2-ply    21/15 20/14 13/7(2)          Eq.:  -0.6462 ( -0.0474)
       0.3007 0.0376 0.0003 - 0.6993 0.2129 0.0019
        2-ply cubeful prune [world class]
    3. Cubeful 2-ply    21/3 20/14                   Eq.:  -0.6778 ( -0.0790)
       0.2630 0.0302 0.0002 - 0.7370 0.1760 0.0011
        2-ply cubeful prune [world class]
    4. Cubeful 2-ply    21/15 20/2                   Eq.:  -0.7012 ( -0.1024)
       0.2515 0.0273 0.0001 - 0.7485 0.1767 0.0010
        2-ply cubeful prune [world class]