On my E90 and B8 Audi A4 I've had good ride comfort and just enough of a drop. I've always known H&R is more aggressive in lowering but at a cost of comfort. So I went out on a limb and had these Eibachs ordered for the X3. I just never knew it was only 1" front and 0.5" rear difference... that's actually less than what the Eibachs have done for my other cars.
BTW check this guy's ride out:
http://x3.xbimmers.com/forums/showth...ghlight=eibach