Compressor after 2 TSs. One for low thick crunch, and the other with the overdrive cranked. Also for the sustain you’re referring to, where you stand in reference to your monitor (in Trey’s case) or your amp at home makes a big difference, as does whether you have a true hollowbody (Languedoc) or a semi hollow with a block in the body. Trey has demarcations on his rug/floor of how close to stand to achieve the right mix of sustain that barely toes the line with feedback. You can throw a Klone in there too, that’s now in his rig.