More back up saws the better! How often do the agency saws get run" (what type of agency BTW?)
Up here, whenever there's a major weather event, most of the fire company saws would never start cause they've been sitting. Most of the fire fighters would just run their own saws. Which they'd rather do anyway since they all own 562's, 372's and such. The most saw you'll see on a fire truck is a 455. Converted most of the fire companies to running the canned fuel so at least those saws will start when needed.