If you truly want to go where no man has gone before - play the music
that's in your head. Listen to the tone, flavors, rhythms, colors,
shapes that come to you naturally. DON'T think of notes, that's a
bigger trap than thinking in positions.
There is nothing wrong with "thinking" in positions and in fact
Howard will tell you to think that way until you're comfortable
playing through changes. Thinking "positionally" is a step beyond
thinking in notes.
When I'm playing I don't think anything, I see colors, textures,
waves of rhythms in my head. That's what I play. If I need do break
it down later and figure out what I played I can but what would be
the point?