Hi,
Well, after having them fitted I thought I'd give you some feedback in case anyone else is thinking of doing something similar.
I started looking at replacement shock absorbers after a rear one developed a knocking and needed replacing. On investigation is soon became apparent that the factory fitted items are not particularly good and I was keen to minimize body roll and get a less bouncy ride whilst driving on lumpy roads. The KONI items (that I bought from Camberley Auto Factors) seemed to offer what I wanted and after some discussion with people at Tim Fry Land Rover in Cheltenham (my local independent specialist) I set them on setting 1 (they run from 0 to 3, 0 being the softest). Setting 1 produces a ride far more like a normal car rather than the very bouncy ride.
The difference is quite amazing: the knocking is obviously gone, the ride is far better i.e. not as bouncy, and the body roll is much reduced. I should have done this years ago. I've no idea how this affects off-road performance but since my RR rarely goes there it's really not a problem.
Brake hoses, discs and pads next!
Regards
AlanC