I was a Certified Executive Chef for 12 years. I butchered meat on a daily basis. I used to hang my game meat for a minimum of 14 days, if it was cool outside, less if it was warmer. I was talking to the owner of Palace Meat Co. in Salt Lake (he's been a butcher for over 40 years), anyway he said that alot of butchers are now cutting and packaging the meat right after the kill and then are ageing the meat after it has been cut up. I started doing this on my last six deer and they have been phenominal. My wife doesnt have to stare at a garage full of dead game either. I age my meat using this method for 18-21 days. You need to cool the meat immediately. It is also VERY important not to get the meat wet. DO NOT rinse the meat. It is best to wipe it off or cut it out. Skinning is also easier when the carcass is still warm. Also, make sure that you field dress the animal ASAP and when you are butchering... trim away as much fat as possible (as deer/elk fat tastes rancid). If you like the taste of fat in your meat... there is a method called "barding"... that is where you take some small strips of beef fat and place it in small slits in the meat. This works especially well in roasts and steaks. One of the benefits to ageing beef is that the fat will set (marbling), but it is not the ONLY reason. It also helps to make it tender (which is also a result of good marbling), improves the flavor, and takes the gamey taste out of it (yes, even beef will taste gamey if not aged properly). Most of the time when I have had "gamey" tasting meat, it was either because they left the outside fat on the meat when they cooked it... or because they did not field dress or skin the animal immediately... or because it wasnt cooled properly, or because they didnt age it. I had a friend over for dinner last year about a month after our hunt. He brought some deer over (that he had not aged) and I had also served my deer (which was aged for 21 days in a refrigerator). The deer that he brought was very gamey, mine was very delicate in flavor. I was with him when he shot it, skinned it, heck I even butchered it for him. So, I know the animal had been well taken care of. The ONLY difference was that I aged mine in the fridge for three weeks and he put his in the freezer immediately. By the way, his deer was a 1 1/2 year old and mine was around a 4 1/2 year old buck. Hope this helps.