A locking shipping wedge is provided and generally includes a body portion having an elongate transverse member projecting from the body portion which is engageable with a drive assembly of a loading unit. The method etches both deep trenches and shallow trenches in a single step. To do so, the consistency measurement component may determine, for a given read operation, the age of the value read from a given replicated data object. A conductive via is extended through the body to connect one of the electrode pads with the conductive film.