E2 fill, cap=128, N=1000000, seed 2
order       split           height    leaves  leafutil   intutil    splits/1000
random      half                 3     11313    0.6906    0.6851         11.439
random      rightmost-1.0        3     11313    0.6906    0.6851         11.439
random      rightmost-0.9        3     11313    0.6906    0.6851         11.439
ascending   half                 4     15384    0.5078    0.5007         15.620
ascending   rightmost-1.0        3      7813    0.9999    0.9688          7.873
ascending   rightmost-0.9        3      8696    0.8984    0.8938          8.769
descending  half                 4     15624    0.5000    0.5002         15.864
descending  rightmost-1.0        4     15624    0.5000    0.5002         15.864
descending  rightmost-0.9        4     15624    0.5000    0.5002         15.864