IMHO - Finding your own sound comes from understanding tone, mapping your idols tone, experimentation etc. When I descover a new axeman I admire I try and understand his approach(playing) and tone. These are some i'll never master(i'm just not up to the job i.e Robben Ford, Larry Carlton and some one called Joe Bonnamassa
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It can be very negative though if your not careful.... as I discovered very early on. I idolised Angus Young and got to the point were I could play and sound like him .... then I got into Thin Lizzy and found I did Lizzy in the style of Angus.... not good ... you get the point.
Joe has a very thick creamy 'Mid' tone, he rides the volume a lot so I don't think he has a 'lead tone' as such ... he just whacks the volume up on the guitar. I'm sure Joe would clarify this if you asked nicely 