delta=0.25 blocks=2 k=2 trial=0: min W(pairs) +0.046012   (same positions, doubles: +0.033410)
delta=0.25 blocks=2 k=2 trial=1: min W(pairs) +0.044983   (same positions, doubles: +0.033464)
delta=0.25 blocks=2 k=2 trial=2: min W(pairs) +0.045809   (same positions, doubles: +0.033447)
delta=0.25 blocks=2 k=3 trial=0: min W(pairs) +0.047126   (same positions, doubles: +0.036572)
delta=0.25 blocks=2 k=3 trial=1: min W(pairs) +0.047144   (same positions, doubles: +0.036615)
delta=0.25 blocks=2 k=3 trial=2: min W(pairs) +0.047286   (same positions, doubles: +0.036583)
delta=0.25 blocks=2 k=4 trial=0: min W(pairs) +0.047063   (same positions, doubles: +0.037666)
delta=0.25 blocks=2 k=4 trial=1: min W(pairs) +0.046742   (same positions, doubles: +0.037722)
delta=0.25 blocks=2 k=4 trial=2: min W(pairs) +0.047058   (same positions, doubles: +0.037662)
delta=0.25 blocks=3 k=2 trial=0: min W(pairs) +0.049826   (same positions, doubles: +0.034784)
delta=0.25 blocks=3 k=2 trial=1: min W(pairs) +0.049826   (same positions, doubles: +0.034783)
delta=0.25 blocks=3 k=2 trial=2: min W(pairs) +0.049869   (same positions, doubles: +0.034776)
delta=0.25 blocks=3 k=3 trial=0: min W(pairs) +0.052112   (same positions, doubles: +0.038476)
delta=0.25 blocks=3 k=3 trial=1: min W(pairs) +0.052119   (same positions, doubles: +0.038479)
delta=0.25 blocks=3 k=3 trial=2: min W(pairs) +0.051786   (same positions, doubles: +0.038543)
delta=0.25 blocks=3 k=4 trial=0: min W(pairs) +0.053586   (same positions, doubles: +0.039872)
delta=0.25 blocks=3 k=4 trial=1: min W(pairs) +0.053172   (same positions, doubles: +0.039912)
delta=0.25 blocks=3 k=4 trial=2: min W(pairs) +0.053586   (same positions, doubles: +0.039871)
delta=0.25 blocks=4 k=2 trial=0: min W(pairs) +0.053675   (same positions, doubles: +0.036369)
delta=0.25 blocks=4 k=2 trial=1: min W(pairs) +0.053661   (same positions, doubles: +0.036364)
delta=0.25 blocks=4 k=2 trial=2: min W(pairs) +0.053481   (same positions, doubles: +0.036443)
BEST delta=0.25: min W(pairs) = +0.044983 (blocks=2 k=2 trial=1)
