Then it's pretty much a two person job to take them on and off a camper.
I also use Yakima gunwale brackets and carry my sit-on-top upside down. Also installed Yakima Boatloaders to my crossbars. They slide out of the end of the tube to load the kayak or canoe. I load a 65# Wilderness 13' tandem by myself all the time. The gunwale brackets and Boatloaders extensions add little weight to the roof compared to other options.
Edited by JHa6av8r, 08 January 2015 - 02:03 PM.