Remember, prior to 1994, Blue Streak had skid brakes and two stop loading. It did have an automated safety system that would attempt to stop the train uptrack of the station if the other train were still in the loading area. I only saw that happen once, and the nose of the train was in the unloading station. The ride had only three blocks on it...loading station, lift, and brake run/unloading station. The new brakes are based on blocks on the lift, the brake run, and the station. Look more closely...there is no brake caliper in the old unloading area, where the transfer table is now. So it still has three blocks, and hence, only two trains.
There is another item to consider as well. The ride time on Blue Streak, station to station, is short enough that the interval is only about 60 seconds, which is about as fast as you can go to load a whole train. Heck, I don't think that ride has been capable of hitting interval since they butchered the train in '96. So if it had a fourth block and a third train, there wouldn't be any gain because it would *always* stack (instead of usually stacking as it does now). Corkscrew is a slightly longer ride, has four blocks on it (at least two, perhaps three brake blocks between the Corkscrew and the station) and actually has about the same interval as Blue Streak.
--Dave Althoff, Jr.