Built my 2015 according to basic clay setup. Tried to set ride hieght, and had to run the collars all the way up just to get close to 19 mm, and when I pick the car up and the shocks drop there is a bunch of play in the spring.....? I used a 1mm downstop shim in front shocks and none in rear, this is what the manual/setup suggests. Any input or suggestions? Thanks.