I am not trying to hijack this thread but trying to get some answers to an observation made in OP.
If someone can enlighten me please, where is this dreaded "floaty" ride come from. People are swapping firmer spirings in place of OEM, but still floaty. Is it the design, stiffness or the stock dampers? Surely there are suspension gurus who can contribute as to why. Thank you in advance.
E92 M3 2007 - ///PE with Test Pipes and BPM Stage II; CF Interior & Splitters; CIC with Connected Drive