A slider having an advanced air bearing can employ control features that permit control of the flow-field streamline direction and thus enable an indirect mass transfer that flushes any accumulated lubricant out of the advanced air bearing. In the system, a first device may receive information identifying settings that are applied to one or more second devices. , the plasma density in the vicinity of the substrate, is increased by providing an ion extractor configured to transfer ions and electrons from a first region of magnetically confined plasma to a second region of plasma. Then, after acknowledging completion of upgrading of the computer program, the application server is permitted to receive any new requests for the computer program. A trimming circuit allows adjustment of a current flowing through the cascode transistor enabling calibration of the circuit for variations of WL ratio between the power pass transistor and power sense transistor due to manufacturing tolerances.