Anyone rockin these Info Please

yes I searched

I'm looking for a smooth setup which will allow me to change the ride height when needed (nothing to dramatic) and I found these for under 800.

I currently have monroes with swift sport springs and the ride is somewhat smooth (not as smooth as stock) but on bumpy roads the whole car shakes and shimmy's

The thing that concerns me is the spring rate

5 in front and 3 in rear (wouldn't this be race ready type rates?)
http://www.tanabe-usa.com/coilovers/...tions.asp?id=6

though the little that I read on these say its smooth and 1 said its more rough

compared to my swift sport which are

2.4 front and 2.8 rear

or the tein ssp which is
http://www.tein.com/price/scion.html
4 front and 3.2 rear

So anyone rockin these how are they quality and smooth wise

 

Well according to your own research the only agressive spec on the S0C's is the 5k front spring, Trust me you need it, the front of the xB is way heavier than the rear so it will balance out.