I have a 98 and I too had that stupid wobble. Worse when I put on the Givi top box, even if empty.
Tightened the steering bearings a little, and it got better, but not completely gone.
Then my local dealer offered me a complete 00 front wheel from a wrecked bird to try on, tire, bearings, brake discs, axle and all, and the wobble is gone. Can let go of bars at ANY speed now, it's like a brand new bike, possibly even better!
By the way, this is my first post, have been lurking for a while, really nice forum, keep it going!
Geir