Good post and discussion.

Keep in mind Sklansky's opinion that all bets -- including bluffs should be +EV in themselves. That helps with the over-rationalization point you mention.

Other than that the take-away from your post should be that WHATEVER your table image may be you need to be aware of it and adjust accordingly. To me, this is when poker starts to get a little more interesting since it requires thinking several layers deep (how am I playing? How do my opponents perceive me to be playing? How will the specific opponent(s) in the hand react to the way they perceive me to be playing? How can I adjust to capitalize on their reactions? etc.)