Makes me sick when I hear of guys loosing animals... I think a vast majority don't do near enough practice with their bow. And I'm still amazed at how many guys use to screw on fixed blade broadheads, the night before the hunt, and find out they aren't grouping the same... and mechanicals don't make up for lack of practice.
Had a buddy some years back hit a young bull, it turned as he shot, arrow went under the scapula and along the ribs, he thought it was a better hit. It began to drizzle, we elected to trail, instead of waiting ( which we always do),the bull bleed down the inside of his front left hoof, We lost his trail several times, had buddies set with last blood, made loops and found sign again, had to eat aspirin twice that day, from headache of being bent over, and on hands and knees. We caught up with him 12 hours later, and buddy finished him. You got to respect the resource, and not just move on to the next animal.
Mike