A very important part of the "tone" conversation that is often overlooked is to consider the kind of plectrum you are using.
Just changing your pick with change your tone. It's easy to overlook, but makes a big difference. Many guitar players evelove their technique around a particular kind of guitar pick. Therefore, it can take a little while to adapt to a new pick and hence there can be a reluctance to change picks. This is understandable. But try changing picks and see what happens. This is very obvious on acoustic guitars. But it also makes a big difference on electric-guitar tone.