Two (stupid) questions regarding a new cedar fence we are installing, to which we have had opposing views presented to us by sales people, trades people and neighbours: 1) Hot-dipped galvanized nails vs stainless steel screws. Which is BEST? Can hot dipped galvanized rust and stain like electro-galvanized? 2) To stain now or later. Should one stain immediately, to prevent unsightly weathering, or is it better to wait ~6-9 months to let the wood dry and the natural protection rise to the surface? Thanks.