Casie, I do like the idea of row paths through the areas that change the most. In fact, this might relieve some of the burden a bed might have during a heavy rain, as Chris points out.
Chris, the hillside has somewhere between a 5 and 10% grade and it's fairly consistent. We get 15" of rainfall per year but we're due for an El Nino according to forecasts. The concern of washout, therefore, is a real one.
Deeper pathways and high raised beds, with pathways at the points where slope increases considerably, might reduce blowout during heavy rain events, correct?