Springs question...Progressive or Specific

[89FHPLX]

Ok, two years ago I bought lowering springs. I think they are "C" springs. I just bought new Strut and shocks because by old ones were wiped out because of my springs. The ride was stiff. Now the ride is a little better because of the strut and shocks but I still have the stiff ride. I would like to know what srings I should buy.. Progressive or Specific. I dont want that stiff ride but I would like to have some on the handling and the lowered stance. Right now my stance in the front is to low and the back is high. I hate that. What is the Difference between Progresive and specific. Oh yeah, I dont race my car so I wont need drag springs. ALL I want is a softer ride.

Thanks all!!!

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89 Police Interceptor
BBK Shorty Headers, K@N Cone Filter,H-pipe no cats, 2 chamber FlowMasters,Under Drive Pullys,14 degree Timing, Short Belt, No Air Silencer, oil cooler, 3.08's, And All Police Package goodies