RE: I couldn't do it! (weather)
Your 5 degrees is like our -15 celcius or close to it.Hunting in this weather is the norm for us this time of year.[X(]
If you dress properly for the weather then you can hunt in these temperatures for a while.Try getting some of those "HOT PAWS" for your gloves and boots,they do work I have used them alot of times.Keep your face out of the wind,put your back to it.Do you wear a face mask?If not wear a touque and scarf,alot of body heat is lost in these areas.
I have bad circulation in my hands so i will bring a hand muff with some hot paws in it,will keep my hands toasty for quite some time.The bow is not in my hand all the time but that is a chance i have to take.
The cold wont bother your eyes at that temp,just keep your face out of the wind and they wont water as much.
I was out ice fishing with a friend last year on mississippi lake,it was -37c with the wind chill.Now that was COLD,wish I had of stayed in bed that day,or used a ice shack.