Iron Dragon does that because the computers control the lifts. The train has to get over the second hill before the first one so that there is absolutely no way that they will collide! There is room there for 2 trains, but the first has to be right at the very tippy top, then the first lift will speed up again. One more thing: Dragon is really bumpy coming into the station, but that isn't the ride ops fault -- again, all controlled by the computer -- the shocks have to adjust their air pressure.
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Disaster Transport '97 Crew
Iron Dragon '98 Crew