As long as you have a water pan in there I think you would be fine, you can even try injecting the meat before hand or even spritzing with water. Usually on anything big (brisket, pork butt/shoulder, loin, beef ribs, etc) I spray with plain water every 30-45 min once the bark is starting to set, that helps keep moisture in the meat as well. I’ve thought about smoking venison, just never got around to trying it, usually if I keep the back straps I just slice them, butterfly them and sauté them in butter and white wine