I don’t really lube my Salts. The only time the action has ever felt a bit less smooth (other than some grit) is after I’ve had one immersed in the water for a long time; the FRN seems like it temporarily swells a bit from submersion in water, so the action feels less sharp/less smooth for a while. Then after the moisture dries out, everything’s fine again. I don’t know if anybody else has ever experienced that?
On rare occasions, I might apply a tiny amount (one drop) of Tuf-Glide, not on the pivot, but on the part of the blade tang that’s exposed when the blade is closed; the part that rubs against the backspring. I work it in by opening and closing the blade a few times, and that’s it. But I hardly ever do that.