1. Cubeful 2-ply    21/15 13/11                  Eq.:  +0.0815
       0.5279 0.1324 0.0050 - 0.4721 0.1351 0.0033
        2-ply cubeful prune [world class]
    2. Cubeful 2-ply    24/18 13/11                  Eq.:  +0.0569 ( -0.0246)
       0.5210 0.1299 0.0057 - 0.4790 0.1356 0.0033
        2-ply cubeful prune [world class]
    3. Cubeful 2-ply    13/11 8/2*                   Eq.:  +0.0205 ( -0.0610)
       0.5040 0.1431 0.0061 - 0.4960 0.1346 0.0047
        2-ply cubeful prune [world class]
    4. Cubeful 2-ply    21/13                        Eq.:  +0.0084 ( -0.0731)
       0.5092 0.1169 0.0036 - 0.4908 0.1332 0.0031
        2-ply cubeful prune [world class]