All the threads on roof racks seem to be a couple of years old. Obviously installing a permanent roof rack negatively affects range. Has anyone carried canoes or kayaks with foam blocks on the roof of their Leaf? How did it go? I'd like to be able to transport a boat 5-10 times a year to the local river, and putting on and taking off a yakima rack just for those trips takes way too long. Thanks in advance for any feedback!