The present invention relates to peptides and pseudopeptides which inhibit platelet aggregation and thrombus formation thereby being useful in the prevention and treatment of thrombosis associated with disease states such as myocardial infarction, stroke, peripheral arterial disease, and dissembulated intravascular coagulation. A connector is placed into a centering insert that is integral to a polishing workholder. The sensor circuit is operably connected to the power lines, and is operable to generate measurement signals representative of voltage and current signals on the power lines. The second connector terminal includes an annular recess configured to receive the raised step, an annular ring disposed within the annular recess, and a pair of conductive terminals extending from the annular ring. The center portion substantially carries the periodic discharge current such that the discharge width is and may be significantly less than the width of the base portion.