There’s a gate applied automatically in the Input Block, if you turn the Threshold all the way down it’ll shut it off entirely. While it’s a sensitive gate that doesn’t fuck with things tonally, it removes a bit of the realism when you’re moving your hands around the neck and not hearing every squeak. Try turning that off, it may allow you to use the other gate in a more natural manner. And note, in the Gate block itself there’s an option to choose where the gate is recieving the signal as well as the Classic,Smart or Modern gate options. There’s some tweakability that’ll let you get where you want to go.
One thing I get lost in doing is going into the Preamp page in the amp block and turning that Saturation switch on for the Plexi’s, it’s a one-click Jose mod and you can then tweak the shit out of it from there if you want. The different Plexi models really highlight how detailed that unit gets. There’s a reason there’s a 1987x, a 1959, a 50-watt and a 100-watt with all their channels jumped/non-jumped/hi/lo instead of just a single “Plexi”
And the best advice I can give for cabs/IR’s and dialing in tones in general-
Pick an amp you’re familiar with and put all the knobs on 5, unless it’s a Mesa Mark, in which case you have to do the whole 5-band thing before the next step, but just load the amp block up and don’t touch the knobs, first go find and IR or DynaCab that’s as close as you can possibly get to the sound you’re going for, that way you’re not relying on the amp knobs to dial in or out what isn’t there.
And while everyone is free to do as they please with these, I’ve found I’m FAR more satisfied dialing them in to NOT sound polished, especially for recording. Putting polished tones in an unpolished song you’re going to apply some polish to later is asking for shitty sounding guitars/walls of high end. I try to get the raw amp tones sounding as close to an amp in the room with some bass build I’ll have to cut off in post.
There’s a juxtaposition at wanting these to be as real as possible, but people get them and dial in idealized tones that don’t exist in real life and say “It doesn’t sound real”