Ok, heres the deal. I just recently got an ultra pro deck. I assembled the entire thing and waited to tune the headset last. I came to have the problem of the top threaded race not moving with the fork. So when i spin my bars, they loosen and tighten. There isnt any faults in the cups, bearings, or races, my forks arent bent, and ive even tried 3 differents headsets and forks. Last but not least everythings is greased as well, ive been at this for a day and im frustrated. Give me some advice if you have any.