Fat but fizzles drive tone like Allan Holdsworth?

Hi everyone, I am truing to achieve that boosted classic Allan tone, but whenever I try it my sound turns into high gain sound with a lot of fizz. I know it is unevitible but when holdsworth plays, sustain is really long, tone is fat not weak, but we only get the drive sound only at the lower notes and it is not too mucu even in there. The mid and the high range of the guitar is just like a very solid and boosted clean. How can I achieve this tone with quad cortex?

This is a Chat GPT QC version. You actually can learn together. I say that because I uploaded and/or specifically requested new manuals, references, etc. The results were highly useful effects schemes and settings which acheived great results.