Here's the latest mod that I did.
I screwed a length of 1/2 x 1/2 aluminum angle to the front edge of the front roof section. It runs right across and extends an inch either side of the camper body. The idea is that when the camper is up, rain coming down the roof will follow the track off to the side instead of flowing down over the front roof hinge and front storage compartment.
I saw this idea on Tea Haus Camper's blog and copied it. Of course I made a slight mod to the mod though. Instead of putting the track straight across the camper I put a small cut in the flat face so that I could form the track into a long shallow V shape. The sheds the water even faster than if it were straight. The whole thing just works great!