Disclosed are systems and methods for optimization and efficient processing of MERGE statements. The method includes providing a gallium and nitrogen containing substrate member comprising a backside surface and a front side surface. Each rocker has a center of mass, located relative to the pivot axis when the rocker is retracted into the pocket away from the cam surfaces, such that an acute angle formed between a first line that extends radially from the central axis through the pivot axis and a second line that passes through the center of mass and the pivot axis is equal to or less than twenty degrees. The bus bar is configured to be electrically connected to the drain via one or more RF grounded connections. A process unit has the photosensitive drum and the cleaner in which a blade scrapes a residual toner from the drum, a paddle rotates to move the toner from the drum, and a scraper scraping the toner carried by the arm by its free end which is disposed radially outwardly and near to a rotation locus drawn by a radially directional outer end of an arm of the paddle during a rotation of the paddle. In response to the input, the module or frame receiving the input may call an action on a presentation activity, frame or module, thereby allowing the user to navigate through the presentation and accomplish objectives.