I have no experience with the original Armstrong shocks but I can say that the revised Eacott/Bird Spax dampers with limited travel have worked very well for me on the road, on the track and with servicing the car with its wheels up in the air.
Dampers are wear items and looking at today's technology the only interest of the originals probably lies in being kept on a shelf as factory relics for "archaeollectors".
Dampers are wear items and looking at today's technology the only interest of the originals probably lies in being kept on a shelf as factory relics for "archaeollectors".