Ride is incredibly subjective and tyres and wheel size have a significant impact.
On the Roadster I had SSL front suspension fitted and would have had their 5 link suspension fitted.
But instead I bought a Aero S4 based Plus 8.
More recently I allowed SSL to work their magic on it, with the result that the ride is comparable to the ride of our Mercedes C43 with the suspension on Sport.
I've als driven Molly, the Plus 4 used by SSL to develop their suspension and I have to say it transformed the car.
So, if you want a Trad with ride and handling that is more like a modern PlusFour than a 1950s Plus 4 then SSL is the way to go.