For me the answer is no, I never feel as prepared as I want to be. All the promises to myself of "more bricks" and "more OWS", well, I'm out of time (Iron Girl is Sunday!). This is my 4th year of triathlon so I know I can (and will) do it, but, no, I still feel under prepared.

You still have lots of time to improve your running, and it's no disgrace to walk.