I hunt out of ground blinds and out of a tree stand at times, being an old bow hunter, I like two holes, one in and one out. more holes more blood trail. I hunt in the evenings and track deer in the dark more often than not, deer running off at dusk leak more blood with two holes.
You never know what to expect after a shot, I may hear them fall and I may not, I may have a blood trail right off or I may only see the blood start 50 yards down the trail. I double lunged a 6 point at 10 yards with my .54 last year, I blew a hole in and out, double lung. He ran off like nothing happened, I never heard him fall and only found one drop of blood between where I shot him and where I found him dead 50 yards away.