I guess I'll comment on the shocks too. I have the Koni FSD. I think they make a stupendous improvement in handling! And feel of the road-much more buttoned down and connected. Like he said I wish I hadn't run the Ford shocks as long as I had. I should have replaced them immediately after purchase.
As far as the ride (how much slam, bang, and impact harshness) goes, yes it may be a little better. But sorry I can't go along with night and day improvement. I think fundamentals of rear suspension design have a lot to do with that.