I stripped the paint off of two of our swingarms down to the bare aluminum using multiple cycles of Aircraft Paint Stripper & steel wool/scotchbrite pads. Managed to get a nice clean factory finish (going just heavy enough on the elbow grease to remove the paint, but not the machined finish). From a wear & tear standpoint (heavy woods & rock use with lots of sharp gougey things), bare aluminum rather then powder coat or paint looks the best in the long-run.