Initially I thought there was a huge difference, but that feeling didn’t last. I’m not sure if there was a bit of placebo effect? I’m sure when the car or van has been on a ramp it feels better initially anyway.I'm on standard setup (T32) and tbh the ride isn't to bad. Being a camper I take it steady anyway so works for us. The crashiness as you mentioned is a bug bear though. It doesn't appear you've seen much improvement in this area since the upgrade then?
With hindsight I wouldn’t rush out and do it. I’d wait until the shocks needed replacement and then I’d be happy. I think there is a difference- a certain improvement over OE bit is it worth the difference in cost?.. only just in my mind. Knowing this now, if I had other projects/hobbies to spend money my on as well I’d prioritise those.
I still find the ride quality embarrassing to be honest. Standard suspension is a shocker, upgrading makes it better but still poor so knowing I spent not an insignificant amount of cash to get just this far… I’m not happy. I keep expecting to see oil poring out of the shocks, or a broken spring but it’s all as it should be. Bushes are recent too. So I have standard height OE springs, Koni Special Active shocks and 215x65x16 tyres (nice deep sidewall) and the ride is still crashy. Not sure where to go but I don’t see myself spending any more cash on improvements to the suspension as I think it’s throwing money away. Rather put it towards a better van.