Another Sway Bar Question... This time a rear... Who runs a Firm Feel?

The Firm Feel type rear sway app (a-la AAR Cuda) is the way to go. Most of the aftermarket bars I am aware of are using unsprung mounts, not the frame-hung type. If you have decent welding and fabbing skils you can adapt a more common (i.e. cheaper) bar into a frame-hung mount like this:

http://66.17.171.114/PhotoAlbum/Cars/Pics/duster_25.jpg

This was an early spin pic and the mount ended up being raised further up on the frame and the floor had to be clearanced a few inches for full suspension travel. But you get the idea.