I have the kwv3 on my m3 and im having a really hard time adjusting the front ride hight. I remove the little screw from the spring perch and when i go to lower them, they r impossible to turn. I have the car raised up on a lift and they r still really difficult. I have already broken some of the teeth off the things. Would i be able to get new spring perches? And if i can, is there an easier way to adjust the hight?