The redundant system includes a redundant server of a first system and a redundant server of a second system. The single chip design is implemented by integration of programmable digital and analog circuit blocks that are able to communicate with each other. Embodiments of the golf putter heads include rear pieces with removably connectable weights that can be positioned about the perimeter of the rear piece. The husks and seeds may be removed from the bast stalks. Snap protrusions extend from each of the retaining legs and are formed to interlock with a portion of the wall of the lay-in lug and restrict movement the nut plate.