RL.. give the G2 to the wife and get yourself a Z2. It has the lockout cap TR mentioned and is made tougher. I love mine and it functions as the sidekick to my CCW at bedside.
Or hold out and get in on a groupbuy with me on one of the other models... I am about to commence
Operation Lightsaber to find someone with connections to get me a good deal on a couple of Surefire lights.