yes, there is much more than cape cod, but cc is very good, nonetheless.
There are at least three other methods that I've used with great success. I've used a metal polishing paste (found in automotive stores). Next is the polishing papers that come in a set with different colors representing different grits. And finally there is polishing sticks, much like polishing papers, but it comes in a thick crayon like stick that you rub on and rub off.
I've take out pretty deep nicks (but not gouges) off a bracelet before with excellent results.