I won first place in a cooking contest in 2009 with Venison and Wild Turkey meat.
Stay away from processors. They think it's perfectly ok to burn any lingering hair off the carcass before cutting it up. Idiots.
No aging of the meat is required.
I remove hair and other stuff with a hose or clean wet cloth(s) as soon as I finish taking the hide off.
Remove ALL fat and silverskin. These are the things that obtain the flavors of what the animal eats. Branches, leaves, acorns, etc. ( ever eat an acorn? If you've given it a try, you'll know what I mean )
Damn near every cut of meat can be grilled with olive oil, salt & pepper.
( See those three small 'blade' steaks at the top of the shoulder? Each one makes a nice little steak. )
The only chunks of meat I won't grill will have tendons and sinew I cannot remove. I usually grind that up for chili and be done with it. Chili has all kinds of spices which 'overpower' the gaminess of the tendons.
Make sure the meat is at room temperature prior to throwing it on a really hot grill and cook it as rare as you can stand it.
For instance, when I won that contest, I cut my backstrap about an inch thick ( fat & silverskin removed ), coated with olive oil, sprinkled salt & pepper, and cooked it over a hot grill ( 500-600 degrees ) for about 45 seconds each side.
Throw it on a plate, cut with a fork, and prepare to be amazed.