Good heavens. I have, with my gslsaes, 20/20 vision and visual processing good enough to get remarked upon and even still am not certain what exactly that's suppose to say. Even with the hint, I had to squint and tilt my head to see it. One wonders if the folks at Google ever look at them. Conversely, my audio processing is rather less than optimal and your description of the audio captcha made me nearly twitch. It would be very nice if Google stepped back from all their work on shiny new toys occasionally to consider who they're excluding from their use (either due to privacy or accessibility concerns).