  structured delta=0.15: min T* +0.21362
  structured delta=0.20: min T* +0.17922
  structured delta=0.25: min T* +0.15949
  structured delta=0.30: min T* +0.20263
  structured delta=0.35: min T* +0.38341
BW=1.8000 k=4: min T*(2) = +0.139264 (rand 7); depths [0.3  0.3  0.25 0.2 ]; pair parts [-0.876 -0.02   0.888  1.817]; near [-5.   -3.89 -2.89 -2.89 -1.79 -1.79  2.79  2.79  3.88  3.88  4.94  4.94]
   starts 55, fraction below 0: 0.00, below -1e-3: 0.00
