I have not heard of doing this. What is the advantage? I imagine they're softer...giving better weight transfer. But, what are you giving up? Cornering.
I put Ford Motorsport lowering springs on mine with KYB gas pressurized shocks/struts. Stiffened things up a lot. But, maybe that's not what you're after. I'm just thinking out loud here...
BTW...when I put the new springs in, I found that the factory spring on the driver's side was broken one coil down from the top. The car did sit a little lower on that side, but no one noticed except me. I figured it was due to body twist.