None of the above. But maybe I'm not doing it right. My buddy makes one piece exotic hardwood rods and they get raffled or bid on at our Club fund raisers. Walnut and ebony handle with brass fittings both ends. Its 1/2" diameter.
It came with a stainless tornado brush which makes quick work of wad and powder fouling. A couple strokes and the bore and choke are clean. That's all I use, no solvent in the shotgun bore.
I'm sure the guys on this board will pile on if they don't approve.
Forgot to mention that when I get home from Thursday night Trap or grouse hunting, all my sweaty hand prints are wiped off with an oily cloth before it gets put away. If caught in the rain it stays out trigger locked overnight to dry. I hate rust.