I have the SSL suspension at the front which was delivered with adjustable SPAX dampers. So in a second time I installed adjustable Spax dampers (by Librands) at the rear which are fine.

https://www.librands.co.uk/products-view-215.html

Morgan propose also SPAX dampers (the same? not sure):
https://www.morgan-motor.co.uk/mmc/shop/...-front-604.html

In the community AVO seems to be the most popular.

Regards
2005 PLUS 4