Hi Senor DJ,
Apologies for the late input. Anyway I did purchase a set of Bilstein B8 and match them with H&R sport springs. The handling of SUV was superb, the cornering was sharp with little body roll. But then I still find very uncomfortable bounce over undulation roads at speeds above 100 kph.
Not satisfied with the above setup I experimented with stock shock on the H&R sport spring. The handling and ride was not as good as the Bilstein B8 with H&R sport springs. Now I am back with Koni FSD with stock springs. The ride is very smooth over normal road but still bouncy over undulating roads especially at speeds 110 kph and above.
The smoothness of Koni FSD may be due to its single acting absorber while the Bilstine is double acting and the ride is not as smooth as Koni but with advantage of superb handling. So if you like to do track the Bilstine B8 with H&R sport spring setup is very suitable. The other two setups that I have not tried are Bilstine B6 with stock spring and Bilstine B8 with Eibach spring.