Progressives are good for bumpy roads, wasted for racing when they can reduce the feel. Remember that if you wind up the spring preload you are taking out all that expensive softness at the start of the springs travel
The right springing rate for you - or simply replacing old springs with new makes a bigger difference.
Even with expensive damping, the wrong spring rate will still be a problem.
Expensive damping ... one of the first things you notice is a reduction in stiction i.e. the spring is able to work sooner ... and we're back to basics again