I'm putting H&R springs on my PI. I got one of the fronts done, but even with the hat tightened down all the way I can still move the spring around by hand. It isn't super loose, but I can spin it with the suspension fully extended. I'm assuming this isn't normal, but I have just as many threads showing on the top nut as the other side with the factory spring. The size difference between old and new is massive with them out of the car. Are the factory PI struts longer than a SHO strut or something?