here is a small sample of what I am seeing right now on my proxies:
wayne PA: caffeine
dallas TX: 1 caffeine and 1 no caffeine.
providence UT: no caffeine
woodstock IL : caffeine
Las Vegas NV : no caffeine
tucson az: caffeine
will not listed california because there are too many proxies, about 60% im seeing caffeine and 40% have no caffeine.
I am monitoring just over 320 proxies, all either have caffeine or no caffeine. There is no half caffeine because it does not exist. Google is only releasing caffeine. Google is not going to release 2 versions of caffeine, you may see different rankings based on personal search history, geo location along with many other filters. Like I said before, unless you can type google.com somewhere and see these half caffeine results...then they dont exist...searching google by IP means nothing. I thought I saw half caffeine for a minute...then realized that proxy was for canada :)