Screw them springs, just like elBarto said, one day you'll look at the car and say it needed to be a little higher or lower...
I'm just going to order myself a nice set of KW V1's and it'll be a done deal; no rust, KW warranty & quality and i can adjust lowering to my likings/surroundings
Hope i'm not making a mistake cause 1000€ is not nothing lol :p
Grtz