RE: How long do you guys hang your deer before butchering?
In terms of game/hanging - Aging - NO. Relaxing the muscles post mortise - Yes, this process is completed within 24hours not days. I also believe skinning asap is important to cooling the meat,to mefar more important than aging or loosing a little of the outer edge. If it is to warm I will do like cheifks suggests then tackle it a day or two later, main reason hot boning(cutting warm meat) is tougher. I like it firm a cool so you aren't sawing with your knife.
Idealtemp is 34 - 38F. However skin over will happen even at this temperature if left for long periods.
Remove the tenderloin right away they skin over very quickly and do not needor benefit from hanging.