I think the rain and leather saddle concern is blown way out of proportion. I have Brooks saddles on all of my bikes. Ideale on the touring bike before I replaced it during the big touring bike refurbishment project a couple years ago. I never cover the saddles when it rains. They are not harmed from a few hours of rain. When you are riding in the warm summer months, you are sweating. Your shorts will be soaking wet at the end of a long ride. These soaking wet shorts are on the fragile Brooks leather saddle for hours and hours of riding. That is far more moisture than you will ever get from rain. You should keep the saddles well oiled with Proofide, mink oil, paste wax, or whatever to help keep moisture from getting into the leather. But that is all you need to do. I would also suggest not storing your leather saddled bike outside year round in all weather. Bring it inside. On tours if you are concerned, put a plastic bag or shower cap over the saddle at night to keep dew off of it.