I prefer pass through. All I know is certain animals just have the will to live that defies all the science and logic. The 1st deer I shot (many decades ago) was a 15-20 yard broadside shot with a 12 ga slug. It went through both lungs creating a baseball size exit hole. The deer still ran over 75 yards before crashing in the thickest briar patch in TN. I have also shot deer with 160AB at 250 yds that never twitched (DRT). I don't know why every deer that makes several yards before it crashes seems to pick the deepest ravine or thickest briar patch as it's final destination.