I hear about "adjusting extractor tension" from time to time on this forum. Just how do you adjust an extractor? To look at it, it's nothing but a funny shapped bar with a hook that goes into the rear of the slide. So how do you "fix" an extractor? I've had the original extractor in my Kimber Custom (about 10,000 rounds fired, various ammo) and I haven't done a thing to it except clean it after every trip to the range.