1. Cubeful 2-ply    13/12*(2) 8/7(2)             Eq.:  +0.4754
       0.6494 0.0936 0.0030 - 0.3506 0.0590 0.0007
        2-ply cubeful prune [world class]
    2. Cubeful 2-ply    13/12*/11(2)                 Eq.:  +0.2897 ( -0.1857)
       0.6017 0.0743 0.0019 - 0.3983 0.0764 0.0008
        2-ply cubeful prune [world class]