Alia,
haven't beat mine up much, but so far it's tight like on prom night..as they say..
Seems when it is shut, there is no vert movement anyhow due to the clamp, and the swingarm pretty much resting on the bumper once closed...or, in designing yours, I think it would be smart to have that swing arm be very close to the bumper, just to support it over the years incase it does get some sort of droop over time...beefy spindles too are a welcome thing. It seams with the tire at a slight angle, it appears more tucked into the rear of the rig, and sort of follows the line/angle of the rear window.