I just saw one of these in another topic and decided to google them a bit. The first thing I noticed is this must be a game changer when it comes to payload since all the weight is on the ASH. Also I would think it also adds stability since you have another axle. Sway would be eliminated because of the physics, but 5th donít usually sway anyways. They also have built in hydraulic brakes so braking must be better. Videos show people backing them up no problem and turning way sharper. So does anyone own one, are they still around and how good are they? Just curious. The pic I stole from another thread.