main body of the distribution is weakly affected by restrictions on $V_{max}$, but that the lower tail (which is needed to place a lower limit on the true mass of the Milky Way) is suppressed if $V_{max}$ is not allowed to take small values.

                                                                     5%    25%    50%    75%    95%     \# of pairs
  ---------------------------------------------------------------- ------ ------ ------ ------ ------ -------------
  $200{{\rm \,km\,s^{-1}}}\le V_{max} < 250{{\rm \,km\,s^{-1}}}$                                      
  morphology, isolation                                             0.67   0.93   1.15   1.47   2.05            117
  morphology, no isolation                                          0.61   0.93   1.14   1.52   2.09            155
  no morphology, isolation                                          0.67   0.97   1.20   1.50   2.32            758
  no morphology, no isolation                                       0.63   0.96   1.22   1.55   2.54           1015
  $150{{\rm \,km\,s^{-1}}}\le V_{max} < 300{{\rm \,km\,s^{-1}}}$                                      
  morphology, isolation                                             0.34   0.72   0.99   1.27   1.93           1273
  morphology, no isolation                                          0.33   0.68   0.98   1.29   2.00           1650
  no morphology, isolation                                          0.41   0.81   1.09   1.40   2.21           8449
  no morphology, no isolation                                       0.35   0.77   1.08   1.43   2.41          11838

                                                                     5%    25%    50%    75%    95%     \# of pairs
  ---------------------------------------------------------------- ------ ------ ------ ------ ------ -------------
  $200{{\rm \,km\,s^{-1}}}\le V_{max} < 250{{\rm \,km\,s^{-1}}}$                                      
  morphology, isolation                                             0.54   0.97   1.33   1.66   3.93            178
  morphology, no isolation                                          0.45   0.94   1.26   1.66   3.93            241
  no morphology, isolation                                          0.54   1.01   1.34   1.82   4.62           1128
  no morphology, no isolation                                       0.42   0.96   1.34   1.93   5.11           1596
  