Nasty guitar sim fizz

Dude, you're posting waaaaaay too much about shit that's been covered a hell of a lot. Search.


To answer your question, low pass at 9k, cut 4k, don't add so much highs on the amp sim.
 
Less gain
Less treble/presence
Tight eq cuts around the fizz region (4k-ish)
Bring your low pass filter lower
De-esser

Be careful though, as cutting this stuff out too much can lead to your guitars sounding pretty dull in the mix.

But yeah as has been said there's alot of stuff you're posting topics about that there's already masses of topics about on here. Do a search before posting a new thread as chances are what you're asking has already been covered.