I don't know what happaned but the car is not firm and bouncing on our bad roads.

I decided to change the springs and go for koni (a good brand that I know)

the local shop said
Koni Street is not available
Koni Special is available.
Koni Sports is available and recommended because it's manual adjustable (may be because it's only available)
FSD is availabe on special orders -takes 1 to 2 months
and not recommended because no real tests have been done on the bad roads

I don't know what to buy , I do care alot about the bad roads, at the same time want to feel a difference in handling.

you were always the best reference , please advise.