I am looking for a pair of the premium hand adjustable 13" rear shocks. New takeoffs preferred or very low miles. I am not sure if they come with different spring weights, but I'm a big guy so I need something heavy duty. The stock air units are a P.O.S. and I cant swing Ohlins or JRIs. and from what I've heard these units are pretty good for the money. Anybody got some they wanna get rid of?