Tony - For most of us, blade corrosion probably won't be a major concern. After I use one of my blades I always clean and dry it well, then sometimes I rub a little RenWax on it. Outdoors, a little light oil will do fine.
Paul has a different problem, living on an island surrounded by plenty of saltwater. I would imagine anyone living along a coastline would have the same concern.
I doubt that I will use the DogFather LE very hard, as it will get passed on to my Grandson eventually - I am NOT in a rush for that!!! <img src="/ubbthreads/images/graemlins/crazy.gif" alt="" /> Tom