I understand the theory behind using the straps as a form of sway control, but in reality, I don't see it working all that well. All it does is shorten the length of the connection between the bar and the frame, which increases the rate at which the connection angle changes front-to-back when turning. In theory, if the trailer moves off-center, the downward force of the spring bars causes a righting moment on the hitch head (fore and aft). In reality, I can't imagine that force being anywhere near the forces generated by the spring bars contacting the friction pads, but I've been wrong before. However, before I buy into the system, I'd want to see some analytical testing of the two side-by-side. Telling me your system is as good as or better than a proven setup that's been around for decades without some sort of data to back it up doesn't fly very far with me...