Incorrect, Eibach springs are progresive. Have a look on their website.
Ok, as we see you are not willing to learn. I don't understand such stupidity.
Otherwise you'd have read and understood this:
All Eibach springs for Mk.V and Mk.VI are linear. Eibach Pro are linear, Eibach Sportline
are linear and Volkswagen OE by Eibach are linear.
Don't get fooled when Eibach claims they are 'progressive' as they are not.
I had many Mk.5 Eibach springs in my own hands and I am able to recognize
if they are linear or progressive. It's obvious and easy to see.
But talking to pigheaded is pointless . . . .