Advanced air bearing slider

A data storage device comprising a transducing head mounted to a slider, the slider suspended above a magnetic data storage medium, the slider having a first variable depth region continuously contacting a central rail wall from a first wall to a trailing edge wall and a second variable depth region continuously contacting a leading edge wall, the first variable depth region comprising a floor region and a curvilinear region, the floor region defined by a first linear surface, the curvilinear region defined by a first continuously curvilinear surface contacting a second continuously curvilinear surface, the first continuously curvilinear surface having a first variable depth continuously extending to greater than a uniform depth from an air bearing surface, the second continuously curvilinear surface having a second variable depth continuously extending to less than the uniform depth.