You can make suspension work to give good ride on sealed surfaces, you can make the suspension give good handling, you can make the suspension work well off road and you can make suspension stable under braking - BUT - unfortunately not all at the same time!
The SUPLEX suspensions for the Classic 4 wheelers and the M3W are set up to give good ride, high roll stiffness and predictable handling on sealed tarmac road surfaces. More development work costs more money that has to go on the price, but feedback shows that customers seem happy with the products, but each to his/her own preferences.
One can of course choose the spring & damper characteristics to meet a different set of needs/wants and compromises of course.
Dan ~ Ref allowing more rebound travel. Just do the maths to calculate roll stiffness with no rebound spring, with a rebound spring say 3 times main spring and finally with a rebound spring say 10x the main spring. Then you will see why there is great benefit in a stiff rebound spring for high roll stiffness. Also remember with linear main spring it is not so important to control rebound but as soon as one goes to a significant rising rate in bump then rebound stiffness is critical.
