If it is any help, I have been trialling the new springs now on offer from BCC (see Take Five) and they are proving great!
The car's ride height is now correct and the comfort of ride has been re-established. Driver only or all four up and some luggage, the ride is just the same smooth ride as a Rover should be, a great improvement on the HD springs that are sold as new nowadays.
I recall my first P5 Saloon back in the early Seventies and from memory it is how I remember it, and in those days it was my daily drive covering some 40+k miles a year!
incidentally I now have a set of the HD springs - used for about 1000 miles only and a set of older springs that are a little tired but still very useable (I only changed them because when towing a heavy old classic caravan the car sagged a little).
I need to clear my workshop so offers invited; to collect.
Chuck, Wessex Regional. Rep. P5 REGALIA OFFICE Don't take life too seriously, it is not permanent! My other car is a Rover 75