[Jeff Lee]

All advice here is proven. FYI - I ran SS style leaf springs from Tri-City Competition (Launcher springs) for a long time with Cal-Track bars. The car was reasonably fast but never 60' like I thought it should. In hindsight, I should have used the springs with no bars. And to make it worse, I used the front spring clamps that I was advised to run. That suspension was one bound-up SOB! But it was my doing, not Tri-Cities.
When I finally saw the light, I installed Calvert springs. Suddenly I had a whole new race car. Big improvements followed immediately.