When I listen to what I did under the influence - 10 years of work - I don't think it either enhanced or impaired me. It didn't have that much to do with it.
To me, as long as we've known each other, I've always thought Mick's most brilliant thing was that he could work in an area two foot square and give a very exciting performance.
Good music comes out of people playing together, knowing what they want to do and going for it. You have to sweat over it and bug it to death. You can't do it by pushing buttons and watching a TV screen.