Boot racks, along with many other vehicle racks are designed with a vertical leading end, the front! In the same way that a flat bed truck always has a vertical front end to help prevent loads moving forward under heavy braking or an accident. So why does anybody fit a rack the wrong way round? It doesn't make any difference whether they have a case that locks to the rack.I can only assume that an owner with a back to front rack either doesn't understand the principle behind the design or just wants to be different. No problem, we are free to be different.When I go out later I will be wearing my shirt back to front and my shoes on the wrong feet.I was going to wear my trousers back to front, but at my age I often need to go at short notice.