Good advice, but I'll add that we're talking about silhouettes seen at 7-15 yards, so 72dpi is sufficient.Skiprr wrote: Actually, 150dpi would be perfectly acceptable, and that would be 3,600 pixels wide for a 24-inch plotter roll
Wide printers and big images burn up a ton of consumables; no need to use more than absolutely necessary. If a lo-rez pass isn't sharp enough, $0.0000001 worth of Sharpie ink traced around the outline would do more good than hi-rez printing.
Kevin