The pouring rain situation doesn't really matter. No matter what you use for a work vehicle you are going to get wet going to and from. I pull the slide out, get whatever, and roll it back in if its raining. The rear door shelters a good 2' over the tailgate. The doors on my side compartments lift up and shelter the interior from rain unless its blowing sideways. I've worked all day in the rain more this past year than any other I can remember. We're about 10" ahead of the norm for the year. My bedslide didn't cause any new concerns.
