Synergy springs

Is anybody running Synergy 4.5 inch springs, what are they like, are they stiff or soft?, have you had any sagging issues?

Thanks

Since you have no feedback, I will give you mine (though not 4.5"). I had the 2" springs on my 2012 JKR. Got 3" and springs were medium- not soft and not too firm. I liked them. Just ordered the 3" springs for my 2014 JKUR. My other options were RK Triple Rate 2.5, Metalcloak 2.5, and EVO Plush Ride (used those too...prefer Synergy).