Front end feels really sloppy

I noticed when I replaced my stock PS box with a Firm Feel Stage 2 it was a lot more numb than I expected and still a little over-boosted. After a couple thousand miles though I think it's broken in a bit and is now a lot firmer; you may just have to break-in the steering box.

One thing nobody mentioned yet, did you get the alignment done to the proper specs? Some may argue on camber and toe but you should have as much positive caster as possible. If the alignment isn't correct it'll really screw up the handling characteristics of the car.