The N chain model and its associated concentration-time plot bring to mind an analogy to a series RC electric circuit where there is only one path for current to flow and the drops in voltage across various elements add to give the overall drop from the source to the sink. The circuit is apparently open as there is no path for charge to flow back to the source. The relays appear to act as capacitors that temporarily charge when their rates are positive and then discharge when their rates eventually become negative. The source only discharges and the sink eventually charges to capacity at infinite time. Furthermore, the distance or air space between two consecutive relays could be thought of as a resistor according to the exponential dependence of rate on distance. With this in mind, the N chain model (equivalently, a series connections model) was compared to an ET network in which parallel connections prevail; specifically, for parallel connections there are multiple paths from source to sink and the potential across each path is the same. Of interest is which of the two networks provides the better hopping advantage. The comparison is made fair by assigning the same total distance from source to sink, as well as the same overall potential drop. For both networks the source is assigned 1M initial concentration, all others zero. The parameter N again denotes the number of relays in the path from source to sink, where for the parallel model there is only one relay per path giving N total parallel paths. The uphill step has been eliminated from the N chain model producing the series model in Figure having N relays and N + 2 total species. As shown in Figure , the big winner is for series connections and that parallel connections only provide minuscule hopping advantage.