I think TV has done hunters an injustice. They preach too much about wait an hour, back out for the night yada yada yada. I'd rather have 10 minutes of tracking light than giving a deer an hour or even 15 minutes for that matter. Quitely climb down, check your arrow and decide at that time. If you hit a deer in the vitals like you show in your mark, he's dead in seconds.... SECONDS. Track the deer quietly for the first 30-50 yards. If the deer starts pouring just keep going. If it's a bag of worms then you might want to back out. Deer don't generally bleed a lot the first couple hops of their escape. It usually takes them 20 or 30 yards minimum to start putting blood of any consequence on the ground. A few extra minutes of daylight tracking also allows you to use footprints and you have the deers escape path clear in your mind, that's if you did your homework as the deer fled.

In my opinion there are just too many people being educated to wait until tomorrow. Leaves the meat subject to ruin, coyotes, or whatever. You'll know in the first 100 yards if you're right or wrong. If the deer is down in that hundred yards he isn't going far even if he gets up. If he's not pouring blood or down in the 100 yards, by all means back out. Just go slow and quiet. I've NEVER left a deer in the woods over night.