I tried tightening the star nut to no avail and on the cane creek headset everything was all sealed and packed up. The compression ring is the plastic ring with the slit in it that goes on the top part right? I did put that in. I think maybe my spacers / stem are not at the right height yet to properly pull tight on everything. No matter how tight I spin the star nut I can still spin the spacers around the steering tube.