A slider includes a slider body having an outer side edge, an inner side
edge, an outside rail and an inside rail. The outside rail has an inner
edge and an outer edge and is positioned adjacent to the outer side edge
of the slider body. The inside rail has an inner edge and an outer edge
and is positioned adjacent to the inner side edge of the slider body. The
outside rail includes an outer pressurization surface and the inside rail
includes an inner pressurization surface. Both pressurization surfaces
have an above-ambient fluid pressure when the slider is in flight. The
outer pressurization surface extends along the outer edge of the outside
rail a length greater than a length that the inner pressurization surface
extends along the outer edge of the inside rail.