Mike,
I do not lubricate the firing pin on any of my revolvers. Maybe I am just odd here. But, I do try and clean them at times, depending. If I am trying to get crud out of a place where I do not want oil or lubrication, I might use brake cleaner or something like that that will evaporate.
Lately, I have been using Bore Tech Eliminator on most of my guns, on the barrel interior, and all other places. I use it on 1911 firing pins as needed, and I know it has gotten into my revolver firing pin channels when cleaning them. I usually just work the firing pin in and out, with a small punch. It dries without lubing, as the CLP would do. I like CLP, but usually only use it in my range bag, for cleaning & rough lubrication in the field. Once home, the gun gets the better treatment.
Craig