A shoe box having one or more integrally formed dividers extending from the end of the shoe box, with the dividers shaped and sized to extend laterally across and to be positioned between a pair of shoes within the box to secure the shoes in fixed space relation to one another. A user wishing to sell a product can browse to an existing description of the product in an electronic catalog and then select an option to create a corresponding listing. The method further allows providing a rulebase for relating angular travel of a rotor in an accessory device to crankshaft angular travel. The FV arithmetic unit 24 generates a voltage instruction value having a specific magnitude and phase corresponding to the speed instruction value by utilization of magnetic polar position data that is obtained via integration of a frequency corresponding to the speed instruction value. In use, drum assembly proceeds by affixing the mounting clip to the cage and inserting the drum head into the cage’s bore.