Awesome results with the 'LOG' implementation. I can't wait to try it. I just picked up the work car (Toyota Echo, same as Yaris) for a few days and will be trying some of that. I haven't driven standard in five or six years but it comes back fast. Now to up the difficulty and try 'LOGing'.
With crazy tanks like you just had it's only a matter of time before you're way over 50 mpg lifetime.