Took over an hour of search (before ur request) - both Google and Bing were useless. Just crossed my mind that I may have upvoted it here on HN and voila!
Also, thanks for updating your original comment. Your numbers were stuck in my head. After reading the article - I was like - It's not making sense. So, I reread your comment and saw the updated numbers :-)
http://blog.chriszacharias.com/page-weight-matters