I got an unused used Sears X-Cargo carrier and I've loaded it past capacity a few times. $100 and it locks. Last time it did peel open on the sides but, I think thats because I had used tie downs on the cross bars (pulling them cliser together) to hold a few other items on the roof. Stopping to add tape on the trip to hold it shut worked fine.
You can almost see the rack in the photo. Lol
You can almost see the rack in the photo. Lol