I watched the Rack Outfitters video and it said there's only about 40" of usable crossbar width on the back. We are getting two fishing kayaks that are about 33" wide each. Obviously we can't lay them hull down or up side by side. They would need to be stood on their sides stacked against each other. Given the rack is made by Yakima, I was curious to see if their bigstacker or stacker system was compatible but unfortunately it said not compatible. Could we still load two kayaks using this method with regular tie down ratchet straps and/or rope?