Cal Tracs rear suspension or multi-link suspension kit?

I run Caltracs, mono leafs, rear adjustable shocks and 90/10 front shocks. The ride is not harsh, but it's not like I'm driving a luxury vehicle. It's a street / strip car. If you want a great ride, you're all driving the wrong cars. I hook up well with Nitto NT555R drag radials. If I am on the street, I turn the adjustable shocks softer. If I was going to do more track racing than street I would probably go to a 4 link. As it stands, I am very happy with my set up. It works as advertised, rides well, no noises and it hooks. What more can you ask?