I've always cleaned the barrels, but always managed to beat the hell out of my hands doing it. The Vette wheels are even worse. I finally got Adams' turbo stick and used it this past weekend....worked wonders and even got behind the calipers which was impossible with the wheel woolie. I didn't cut myself or even break a nail
And it took me half the time.
Turbo Stick Wheel Cleaning Tools | Wheel Cleaning