Does anyone use one of these to store their boat on top of their car in the summer months? I find I get out more if I leave my boat loaded but I don't want the UV damage if I can avoid it. I was looking online at the Danuu brand at MEC: https://www.mec.ca/en/product/5018-803/Buddy-Kayak-Bag Are they easy to put on once the kayak is set on a Hullivator or do you have to bag it before loading? How are they at highway speeds? If anyone has any experience with these or other suggestions please chime in.