1. Cubeful 2-ply    15/13 4/2*                   Eq.:  +0.5601
       0.8005 0.1189 0.0013 - 0.1995 0.0906 0.0010
        2-ply cubeful prune [world class]
    2. Cubeful 2-ply    18/17 15/14 4/2*             Eq.:  +0.5567 ( -0.0034)
       0.7991 0.1192 0.0013 - 0.2009 0.0916 0.0011
        2-ply cubeful prune [world class]
    3. Cubeful 2-ply    18/16 4/2*                   Eq.:  +0.5421 ( -0.0180)
       0.7935 0.1189 0.0013 - 0.2065 0.0918 0.0010
        2-ply cubeful prune [world class]
    4. Cubeful 2-ply    22/21(2) 4/2*                Eq.:  +0.5306 ( -0.0296)
       0.7915 0.1130 0.0011 - 0.2085 0.0939 0.0008
        2-ply cubeful prune [world class]
    5. Cubeful 2-ply    15/14 4/2*/1                 Eq.:  +0.5211 ( -0.0390)
       0.7766 0.1175 0.0013 - 0.2234 0.0741 0.0007
        2-ply cubeful prune [world class]
    6. Cubeful 2-ply    22/21 15/14 4/2*             Eq.:  +0.5207 ( -0.0395)
       0.7897 0.1180 0.0015 - 0.2103 0.1044 0.0017
        2-ply cubeful prune [world class]

22. there is no cracking roll. so no gain by splitting anchor.