A rack assembly has two support frames and at least one shelf that are secured to the support frames by connecting assemblies. The energy states may be used to distinguish memory states for the capacitor structure, allowing the invention to be used as a memory device. The method transmits an acceptable influential message and transmits the message through a communication network to a shopper tracking device, which is in close proximity to a shopper during a shopping trip throughout a retail establishment. The method further includes forming an epitaxial layer on at least one portion of the fins in the first region and at least one portion of the fins in the second region. Both the spacing of between the support members and the length of the support members are adjustable allowing the distance between and height of the rails to vary to accommodate watercraft of different widths, water of different depths and create varying lift angles. Thus, the lubrication pump can be sized to produce the predetermined flow volume at a speed range at which the engine predominately operates while the variable delivery pump can supplement lubrication fluid delivery from the lubrication pump at engine speeds below the predominant engine speed range.