No, no. running the lighter springs works for me, and the slapper bars took care of the spring wrap issue, which is what they are designed to do. The rear of the car lifts and plants the tires hard.
I've tried the 3700lbs springs several decades ago. The car rode like a 1 ton pick-up with no weight in the bed. It was very harsh on the open roads and city streets. Probably good for a track only car on a smooth track, but unlivable on the street. I drive my cars on the open roads and city streets almost daily.
The combination of lighter SS springs and slapper bars give a smooth compliant ride on the open road & city streets, and they hook up much better than the 3700lbs springs ever did.