Originally Posted by Road Fan

+1 to this! I've found that if I can't eliminate play by adjustment, I try to better seat the crown and cups. If that doesn't work I have the frame and fork faced and reamed to restore the fit and positioning of the cups. That has fixed it every time.

$20 spent to finish installation of a $20 to $60 headset on a frame worth $200 to $2k is a good investment if I get more years out of the headset.