My biggest in tracking is my height. I'm 6'10", so that blood is a long way away. I usually on hands and knees when the trails get tough. My wife shot her first buck this year, but she whacked him through the jugular. The blood at first was awesome, a little big gross actually, but then it dried up to nothing. I got on my hands and knees like the old indians in the westerns, and we ended up finding him, but that track job was done on specks of blood. Time is the key to tracking IMO, can't be in a hurry. My feet are like the ends of canoe paddles, so if I jump ahead, i WILL step on blood, so now I just take my sweet time.