An composition with improved electrical stability for use in microelectronic applications comprises a polymeric resin, a conductive filler, a curing agent, optionally either a reactive or a nonreactive diluent and a corrosion inhibitor to provide the electrical stability. The apparatus includes a sole having a forefoot, an arch and a heel portion provided with a first side of the heel portion and a second side of the heel portion. The load weight determining apparatus has a current detecting element detecting a motor current supplied to the lifting-lowering motor from the inverter controller, and a load weight determining unit. The second stage may also store a prebuffered data output and one or more feedback storage values on separate nodes.