While my Wyoming elk tag has so far gone unfilled, my friend Tess was luckier, tagging her first elk in a Nebraska cornfield not long ago. A heat wave prompted us to spend all day Sunday butchering and last night we put about 20 lbs. of trimmings through the grinder. I’ve been processing my own (and others) deer and elk for about a dozen years and view adding some type of fat to ground venison as a necessary evil. I prefer ground pork, adding anywhere from 10 to 20 percent. Due to a calculating error on my part (I was told there would be no math!), Tess’ grind ended up at about 25 percent pork, a bit more than she preferred. This math problem set me to wondering why hunters take a healthy source of protein and fatten it up? That’s like someone on a diet taking a carrot stick and dipping it in ranch dressing. Quick research shows no clear consensus on what or how much fat to add. Some hunters swear by 50/50, others just 10 percent. Some like pork, others beef tallow. Some add bacon ends and pieces. Certainly, there’s a rationale to adding fat, including enhancing flavor because, hey, we all know fat tastes good. Fat also keeps meat from drying out when you...