I used a Porkert as my original grain mill and I absolutely loved it! I used a large funnel to expand the hopper capacity up to holding an entire batch and I motorized it with a drill. I'm sure the barley crusher fanboys will be chiming in any moment now so I will also say that I got mid to high 80's for efficiency so there is absolutely nothing wrong with corona-style mills. If you take your time getting the initial gap set you'll never have to mess with it again.
