Just mashed in on a batch of Irish stout(Guiness clone) after finally being able to "mill my own" , even hit my strike temp. right on.... Father in-law got me a Crankenstein 2-roller for Christmas. Boy what a grind that thing puts out-can't wait to check efficiency on this one,I milled at the factory setting- seems real good to me(we'll see at sparge time). This is my 1st stout attempt,I'm hoping it goes smoothly. I'll post updates as this batch progresses. Shane