p=4  grid rho in [0.0001,1] x D in [1,10000]: 21 x 21, ntau=241
cases with an interior local max: 0
max |h(end0)-h(end1)|/scale over grid: 2.05e-15
min first-step drop from endpoint f=1 (should be >0 = h decreases into interior): -1.716e-06
min first-step drop from endpoint f=D+1: -5.815e-07
largest relative interior min (min h / endpoint value): 0.9999
   flattest profile rho=0.0001 D=1 minratio=0.99994 at tau-frac 0.37
   flattest profile rho=0.000158 D=1 minratio=0.99990 at tau-frac 0.37
   flattest profile rho=0.0001 D=1.58 minratio=0.99987 at tau-frac 0.33
   flattest profile rho=0.000251 D=1 minratio=0.99984 at tau-frac 0.37
   flattest profile rho=0.000158 D=1.58 minratio=0.99980 at tau-frac 0.33
