After plenty of review on differnt threads here I ordered a Barley Crusher. Can't wait to start using it. When it gets here I will be making my 5th AG. I found that the HBS grain mill does not do a good crush. First three AG averaged 55-60% fourth AG I ran through there mill twice and got 70% so now I am hopping to get 75-80%. Is this out of line to hope for? What size opening seems to work the best? I am also going to get a feeler gauge to keep better track of distance.