Could just be settling after being at full extension. Check bareasschoppers.com for the spring replacement section. He has a few pictures showing the exposed fork difference between stock and progressives. If your exposure falls to within half an inch of what his picture shows I'd think you are good to go. Otherwise time for a change.
Woody's fairing, Parrot Asteroid, Rockford Fosgate 300x4 and Polk db521 speakers. All mounted and wired. Needs paint!