I just bought an ECV that I'm planning on bringing to SDC in a couple of weeks. It has a heavy-duty battery and is 4-wheeled. I know which hills not to negotiate, but will be getting a map down there to make sure. Has anyone had any experience with their personal scooter in SDC, or have rented one of their's? I rented one at Disney World in June and negotiated the crowds just fine, btw.