My 6904 had been poorly stored prior to my ownership. The bluing on the slide was thin all over, but had some light pitting on the left side. I removed the rust, but the pitting was prone to start back up while carrying during the sweltering sticky summer months here in Ky.
So I had the slide cerakoted black. Its now my only S&W now on the "dark side". The photo was sent to me, and i pick it up today.