Purity

    1. Cubeful 2-ply    13/4*                        Eq.:  -0.0942
       0.5288 0.1384 0.0072 - 0.4712 0.2210 0.0066
        2-ply cubeful prune [world class]
    2. Cubeful 2-ply    18/15 8/2                    Eq.:  -0.1281 ( -0.0339)
       0.5197 0.1014 0.0056 - 0.4803 0.1795 0.0040
        2-ply cubeful prune [world class]
    3. Cubeful 2-ply    18/9                         Eq.:  -0.1870 ( -0.0928)
       0.5069 0.1074 0.0062 - 0.4931 0.1969 0.0041
        2-ply cubeful prune [world class]
    4. Cubeful 2-ply    18/15 13/7                   Eq.:  -0.2721 ( -0.1779)
       0.4890 0.1173 0.0071 - 0.5110 0.2516 0.0086
        2-ply cubeful prune [world class]