I have the shortest of shortbeds (5.5'), bit the bullet and got a 5th Airborne Sidewinder because of the zero worry of it working all the time. I also love the air ride on the hitch too! It also doesn't take two men and a boy to remove the hitch out of the truck... I used a regular hitch. It works for me and I would recommend it over the heavy slider system. Will it work or not...you worry each time you turn or back up.
I saved the original pin and will put it back on when selling the camper and may even put the 5th Airborne on a new camper or just sell it seperate later.