Well, I'm going back to my old tricks again and this time I'm for sure sticking by the swearing of it.
Put a treble booster in X slot, turn the tone down to 0 to start and put the mix at around 65 percent. Slowly turn up the tone till you find the sweetness, increase or decrease volume to taste. Increase or decrease tone as needed.
Kaboom! Easy one knob fix eq!
Works great for darker high gain profiles and probably works good with literally anything else. Test away! Enjoy! Cheers!