Not being able to see blood has changed the way I hunt. Never in the afternoon unless I'm with someone. Otherwise I'm subject to being in the woods til 9 or 10 pm if I shoot one late, have to go find someone, find the deer, get him in, skinned and cleaned. In my drinking days that was a great adventure that I did not want to end. Now, I'd rather be home with the wife. Guess i'm a full fledged geezer.