I think I can give you some insight. I have I believe an older type of Pfadt adjustables than what is now offered. They have 16 settings for rebound adjustment from quite a bit softer than stock '08 to quite a bit more.. I was hoping to run them soft for travel and wet tracking, and hard for tracking. Soft setting is sort of nice and would probably be useful if I ever had my wife in my car anymore, but here's the catch: shocks can be adjusted, but your springs are still stiff as heck. So they will be overrun by them, and put the car out of kilter. This pronounces the pendulum effect on rougher roads, I think is from the transverse leaf spring, but also just from stiff springs...
I have two little kids, so my wife and I never take my car alone, if I have a passenger, it's my 3 yr old, who never complains about the ride... I'm training him well...
As for what I do now? I run them stiff all the time, because the ride/performance is just better. It it clear to me I like a stiff ride, but everyone likes balance. I think even if I had a dial in the cockpit to adjust or under hood (Moton's?) I'd still have it stiff most all of the time.
I have run typically 13 to 15 of 16 on track recently, although ran low numbers in the rain once.
I hope this answers your question. In short, you may not be happy with softer shocks because all they do is dampen the stiff springs slower.
PS, I love my Pfadt shocks, don't get me wrong, and have enjoyed adjusting them per situation.
You could get street coilovers but I bet they'd be stiffer yet.