I have an 2008 Fender American Special HSS, I don't really have string break issues, but I got this G string warble I'm trying to diagnose. I know it's common in strats but I feel it shouldn't do it as much as it is. On open G and all of it's frets up the neck, even on a couple other strings, like D and A on the 20-22 frets. A sitar sounding warble. Sustain is ok though, so I wouldn't say it's fret buzz, action is good, fret clearance, nut seems ok (LSR roller) etc. Thought about magnetic pull, so pickups are decked. While that helps a little, its still there and I cannot lower the pickups any more than they are. Only thing I can think of is replacing some hardware at the string contact points, as it's been 10+ years. Probably a new LSR roller nut, and I was looking at Graphtech saddles, the black all Teflon ones like $50 bucks. I was hoping for any opinions? Not worried about tone change that I've read about, just need the warble to stop it's so annoying. Or any other ideas would be welcome thanks.