I have been hauling antique cars for 50 years. The tire "bra" that holds each wheel to the E track in the floor, is the best thing that has ever happened for safety and damage prevention. So what if one wheel strap works loose, you still have three other straps that will hold just fine. Strapping the front axle down against the back axle that has been strapped down is no better than using just one wheel strap. If either one of the front or the rear axle strap slips, and then the car is rolling on it's own. On long cross country trips, both the front and the rear have to be anchored down as the crown in the road will eventually bounce the cars loose slide sideways into the wall of the enclosed trailer. Our cars are finished too nice to wrap a strap around their axles. Using a tire bra over each tire will only soil a whitewall at the very most. Ramp trailers do a good job of keeping the cars in their ramps and away from the walls. Enclosed trailers usually have flat floors and that is where the cars can slide around if not properly anchored down both front and rear. After a while, one learns from their mistakes. Through the years, I have done a lot of learning....not intentionally.