I was wrong, those numbers were biased. In more than one way. Hopefully fixed now. I made another worksheet to collect stats and the distributions look okay. The flatter these bars are, the more even the distribution (and the more "random" the output).
Think I might stop posting new hex thingies (maps?) here for a little bit. At least until there's some kind of notable development. I'll keep throwing them in this Flickr album if anyone wants to see.