I have in my 2014 4/4 definitely too soft leaf springs. Adjustable Avo dampers help very well since three years, so that the springs do not puncture.
I've had these leaf springs in the following link on my shelf for two years. But I'm not sure if the installation is worth the money.
http://www.williamspartsshop.co.uk/williams-torque-resistant-leaf-springs---pair-1098-p.aspHas anyone had any experience with it? good or bad...Someone told me they could be too soft.
In my case the Avo dampers have helped that the springs do not touch, but they cannot help that the cardan touches the car when I accelerate with HP plus tuned engine with full tank and with two occupants.
Who has the leaf springs I have on the shelf (see the link) and can tell his experiences? Or should I trade them for these 4 seater 4 blade springs before I invest money in the installation?
My car is in the shop to get the wing exchanged. So I thought they also could change the leaf springs because the original springs are too soft IMHO. The shop recommended to make a measurement before mounting the new springs.
I wanted to reach two goals, make the car a little more robust due to slightly stronger springs and secondly have a solution against winding up of the leaf springs under hard acceleration.
The result of the measurement is not so positive in my view. The forces are almost comparable. So I think there is no change of drivability.
Here are the graphs. The first one is a standard new 4/4 spring and the one below is the asymmetric anti torque leaf I bought from Williams. So I will keep the original one for a while and I decide to go with the Mulfab four seater four leaf spring.
Are there comparable graphs regarding the Mulfab spring? Just out of interest. Of course for me it is enough to know if many of you are satisfied when using the Mulfab springs.
Sorry for typos, I write this with an iPhone.

