In looking at a new hitch I see that the chain style hookup hitches are roughly half the price of an actual weight distributing hitch that actually has the arms resting on the arms from the trailer. So, with the chain style you get nothing but sway control and zero weight distribution, is that correct? That does not seem to be worth a penny for just sway control; that is an exageration, but why would any one opt for only the sway control rather than keeping the whole load nice and even and controlling sway? I see that a lot of people use the chain type, did you buy yours knowing it is only for sway control or am I off? it seems odd that it would not distribute some weight as it appears to be a very similar mechanism???