A magnetic sensor includes a sensor stack having a first magnetic portion, a second magnetic portion, and a barrier layer between the first magnetic portion and the second magnetic portion. Cross-contamination of fuel types may eliminate the ability to receive certain benefits or financial incentives associated with use of alternate fuel, including but not limited to RINs, credits, and subsidies. The component blank is trimmed at the margins to a marginal contour approximately corresponding to the component to be produced. Control data is communicated from the controller to the point-of-load converter through the first communication path and measurement data is written from the point-of-load converter to the shared memory through the second communication path.