A set topback box and system and method for providing a remote control device are disclosed. In one embodiment, the variable radii cutter has a cutter in the form of a plurality of blades which mechanically expand and contract in response to one of an automated adjustment mechanism and a manual adjustment for accommodating various sizes of radii. ; andcontacting the cooled feed stock with a second hydrotreating catalyst at conditions being effective in reduction of sulphur compound and nitrogen compound concentration.