35mm springs drop, comfortable, .... yes or no?

[Dzole]

Hello ppl, this is my first post here, and i have some questions.

Since ive got a 17inch wheels 205.40.17 tires, i need some drop for my polo (you can see it its a Comfortline 1,2 12v 70ps 9n3)
So i wanna go to 35mm, but i dont wanna lose on comfort, and im planing to change just the springs.
So what type of springs you will sugest me, with the standard shock absorbers (they have just 15000km done)

And if three will some disadvantages, i would like to know

greetings

Dzole