My limited tweaking background- and new to the Axe-FX 3, FYI there are "tutorials" online by a guy named "Jason Sadites" in tweaking Helix. Altho I know that the Axe-FX III is NOT a Line-6 product, Jason did "wonders" for the tones in his videos on YT for Helix. One of the things he did in his videos, and I need to try some tweaks in the AX3 (Like Jason did with Helix) was adding a studio compressor at the "end" of his patches set to a mid-range area, and he also added a crossover like eq after the cab block. The cross over point for the low and hi split was IIRC 650 Hz, and he boosted the highs by 2db and lessened the lows by -2db to start with. Made a big difference on the Helix presets tone.