I track every deer out, even if I saw him go down. It's good training and no two have ever been the same exactly. I start at the arrow and go to it. Yes I've marked the last place I saw the deer really well because a lot of the time there is no blood for a distance. I track it out to get my eyes custom to the blood. Sometimes there's a lot and sometimes there's not. I follow them all for practice. Been doing that for 50 years.