 It is most well known for its double dip element following the lift hill.The double dip produces strong airtime that makes the rider feel that they will be thrown from the seat, and a feeling that the train leaves the track (it rises up but the upstop wheels keep it firmly on the rails).According to Rick Sebak, producer of Pittsburgh history programs for WQED, the layout and train design results in the rear seat of each train experiencing the greatest amount of airtime.