This is where I am currently with my Caravelle, it's on std caravelle shocks and -30mm Sportline springs, which actually has resulted in 70mm lower than std at the front! It's on the std 235/55 17" wheels too so nothing low profile!
Motorway joints are... Ok. And smooth roads are great... That's about it
Every ripple, or slightly raised drain cover is felt, broken tarmac makes the van shudder and rattle, tarmac joints across the road are met with a 'KER-DUNK!!" and proper potholes, oh man - it feels and sounds like something has just hit the van!
If you see a black T6 swerving all over the road in Kent, it's probably me trying to find some smooth tarmac!
I'm getting booked in for the CRS treatment in a couple of weeks, thank god!