It's always surprising to know just how little gain is used for tones that sound so full of it. Compression will do aq lot to keep your notes sustaining, though you again need to be careful with it or it will make your tone even worse. In most cases, less is definitely more. Too much reverb can cause the sound to become a bit muddy as well, as will echo (obvously similar effects) so be careful with that.
"Dozens of people spontaneously combust each year, it's just not that widely reported".