Fineness of grind
I've read that the grainmaker can make fine flour but it may take two grindings to get there, similar results from wondermill jr, and the country living. I've read the Komo, and Mockmill can grind a very fine flour on the first pass.
It seems the blendtec and wondermill electric can grind a fine flour on the first pass as well.
I'm curious if any of these will grind to a "cake" or "pastry" flour fineness or more of "all purpose" level.