I haven't had to replace seals yet in either my 950 (60k miles) or 640, but I find it interesting that people on this thread don't seem to like the new skf seals. In the 950 part of this forum, everyone says the skf seals are the hot ticket to reducing stiction and making the bike perform better. Maybe they are a bit looser than the NOK seals. In any case, I think that seal stiction on most forks is a pretty minor player on the fork action, this binding must be something else going on. . .