I could only make it 3.5 hours. The only bad part is going to pee afterwards. Difficult to tell whats worse, my icy cold fingers on my molten hot giblets or havin to hold my molten hot giblets with an already painfully cold hand. No quarry to take home, but im going to hunt this lil cold snap hard and put in 2 evenings and 2 more morning hunts before the weather turns this weekend. Ive yet to get any venison in the freezer and im not happy about that at all. Ive been daydreaming about deer chili. I can almost smell it.