Yep, that is part of your problem. If you want a softer ride then you'll need to go back to rubber bushings. I have rubber bushings in my Duster with a split mono leaf Calvert setup out back. I use Calvert shocks in the rear and Koni shocks up front with a very big anti-sway bar. I use fairly soft torsion bars. The soft spring big bar approach was popular years ago and I still find it works on the street. My Duster is more of a Pro Street car than a road racer, but it rides nice and it goes around corners just fine. It won't hang with a Porsche around the corners but it will keep up with most daily drivers.