This looks great, but $900!!! Similar idea to the Hullavator, but rear-loading, and not a j-rack.
I‘ve taken my Showboat 66 and mounted it underneath the Yakima crossbars on my Outback, so the sliding bars don’t interfere with the thwarts in the canoe. However, the mounting brackets are plastic, and the useable crossbar locations on the car are too far forward, so the thing has to slide out so far that it’s cantilevered too far out and bows quite a bit, even under my sub-30 lb canoe. I was worried about those brackets over time. Much better to have the whole thing supported, rather than hanging it.
Then I thought about the factory crossbars that came on the car. Smaller and flimsier, but one can be mounted in a location a few inches farther back than the ones the Yakimas can use. So I put in that third bar, but there was a large vertical gap to the Showboat. So I moved the rear brackets to that bar, so it is sitting on it. There is a slight fore-aft slope, but it is fine. Now it feels much more secure. The front brackets are still underneath, but now when loading/unloading the boats, when the roller is loaded, it’s pushing on the rearmost crossbar, and pushing up on the front one. I used it with my 47lb, 14’-6” kayak yesterday, and while it’s still tough with that shape boat, it worked much, much better than before. It will be great with the canoe. I have the kayak saddles on one side, and canoe blocks on the other, so I can’t just load it up the center, which would be nicer, and less iffy for accidentally dropping a boat off the side. The kayak would prefer to flop over.
The thing is fiddly, and as I said before, poorly designed in a variety of ways, and also doesn’t mesh well with the weird Outback rack design (why on earth design a roof rack that way for a car marketed to active, outdoorsy people, I will never understand). But now it works. It still flexes quite a bit, but not threateningly, like before.