A shoe sole covering assembly includes a panel that has a top side, a bottom side and a perimeter edge. A priority score may be calculated for each taskwork unit for each specific processor. Also provided is an abrasive treatment disc produced according to an ultrasonic welding method. The tubular portion further includes a plurality of splines for engaging a valve. Standard cells with high VT transistors in their non-critical circuit pathways exhibit reduced leakage currents when compared with known logic cells.