I mentioned kicker wheels because "in olden days" they used to push the Mine Ride trains out of the station in order to gain a few seconds on the dispatch interval. These days, the park would never stand for that as normal operation, and in order to accomplish the same task they would need to use kicker wheels in the station. Since they moved the block brakes downtrack a few feet, I have been led to believe that they no longer have the 'won't move when the brake releases' problem at the block brakes, although it has not been confirmed to me that the problem was solved.
Actually, Wildcat only has the kicker wheels between the stations, in the loading station, and on the run from the loading station to the lift...which is perfectly flat. And yes, on the Wildcat, the kicker wheels do serve as station brakes. I'd expect to see a similar arrangement on Millennium Force, based on what I saw on Superman: Ride of Steel.
--Dave Althoff, Jr.