Every now and then someone comes up with a straightforwardly brilliant idea. I badgered Roger to send me a pair and amazingly he did! It's hard to believe the improvement they make to my car. Simply fitted...it took only an hour......adjusted to the dimension Roger recommended and take the car out. It's as if the car has had a suspension update. The back stays in line, is quieter and there is no banging or "plunging" when surmounting a crest. It's utter genius. Before doing anything else to back suspension I thoroughly recommend experimenting with these....assuming Roger can produce enough.... More than that, the factory should look at this.
Sadly, I can't post pictures but hopefully Roger will add one to this thread.
Roger was also a very nice person to communicate with.
Thorough recommendation from me and my thanks to Roger.
Nick