Here's some more feedback: Since fitting the Suplex kit I have now also fitted a steering damper and brake reaction bars.
On my -99 4/4 with a very direct rack & pinion steering it became quite a bit heavier but at the same time very 'solid' and calm. I found that with all components in good order the car was still a bit unstable at higher speeds. Advised by a very experienced dealer (outside London) I raised the pressure in the rear to 28 psi and in the front to 26. Now the car is steady as a rock at all speeds - extremely enjoyable!
In short:
- Nodding - gone 99%
- Bottoming out - gone 100%
- Steering kick back - gone 95%
- 'All over' stability - improved a lot
- Road bumps - no longer a distraction
- Driveability - great!
- Value for money - yes!
- Morgan feel - still very much!

I also found out that my wire wheels were in bad condition causing shimmy and vibrations. Initially I thought it was a bad case of 'the Malvern dance' but it was clearly not. I can recommend a wheel check if there are shimmy or vibrations left after balancing the wheels.

-99 4/4, 1.8 Zetec, Indigo Blue, 2-seat, Suplex RS
-04 Citroen Pluriel, 1.6 Sensodrive, Met Orange