I currently run 8k fronts and 6k rears. the rear of my car feels over sprung or over damped and i hardly ever adjust the rear stiffness and turn the front up to 17 or so clicks. I had custom top hats made for mine and got the elongated holes on the hub face thingy.
I did a track day and a hill climb and the car really drove like a pig and understeered terribly mid corner. I mean so bad it was like it was i skating. It was then i went to a suspension shop to try and see if they could corner weight it and solve my terrible handling.
This is when it got worse, i would get heaps of clunks when going full lock and found that the bottom of the strut was hitting the sway bar link, as it was lipped. I had to grind it off which was not fun at all.
The elongated hole bolt came loose and i was running around with a wheel that would go from positive 4 to negative 4 camber at the track day and for two weeks on the street driving to work.
I was wondering why it felt so bad, i tapped a ripple strip and it came loose at the track day. I had to get it welded up and now run 2.5 degrees of camber.
After this point i was really regretting buying them, i had signed up for a Porshe forum Australia autox event two days later after the corner weight and was really feeling down about the suspension i was running and was thinking i should have bought the bilstein kit.
On the autox first run i ran soft front and hard rear for some reason, and s*** me the thing was alive, the car was amazing, turned like no tomorrow and everyone was asking what i had done to it.
I also did another track day last week and most of the understeer is gone. Unless being stupid it grips and just keeps turning. I run 195/50r15 Hankook rs3 at 38psi on the front and no joke it handled amazingly.
They needed some work but the car is great now with the set up.