1. Cubeful 2-ply    21/15 18/13                  Eq.:  -0.6881
       0.5061 0.0955 0.0012 - 0.4939 0.2388 0.0171
        2-ply cubeful prune [world class]
    2. Cubeful 2-ply    21/16 18/12                  Eq.:  -0.7299 ( -0.0419)
       0.5020 0.0954 0.0012 - 0.4980 0.2438 0.0179
        2-ply cubeful prune [world class]
    3. Cubeful 2-ply    21/10                        Eq.:  -0.7891 ( -0.1010)
       0.4969 0.0954 0.0012 - 0.5031 0.2516 0.0184
        2-ply cubeful prune [world class]
    4. Cubeful 2-ply    21/15 14/9                   Eq.:  -0.8247 ( -0.1366)
       0.4913 0.0924 0.0011 - 0.5087 0.2538 0.0177
        2-ply cubeful prune [world class]
    5. Cubeful 2-ply    21/16 21/15                  Eq.:  -0.8729 ( -0.1848)
       0.4848 0.0858 0.0012 - 0.5152 0.2578 0.0239
        2-ply cubeful prune [world class]