Hidden Settings?

I’ve been working on a Syu(Galneryus) tone preset for a few hours in ARC:Petrucci and I noticed that the artist presets have something else going on outside of my control it seems? Even when I carbon copy all the settings from the tone I built and put them on an artist preset, it sounds vastly different on every amp. Sometimes distortion is missing, or the EQ seems independent of the plugin’s EQ tools.

Are their hidden settings or maybe something to their designed profile we don’t have control over?