[enso]

...and that increased my efficiency by 20% from whatever I was getting when I used their old corona-style mill.

I know these mills are despised and I am in the minority but after minimal tweaking I consistently get 80-83% efficiency with my Corona mill.  Okay, here come the "yeah but's"   

[Kaiser]

Okay, here come the "yeah but's"   

I don’t think there are lots of “but”s. If it converts sufficiently and lauters good enough there should not be a problem.

Kai

[smurfe]

All I can add is don't get too cocky closing the gaps on your mills. I was thinking I was a fantastic brewer getting 85-90% then noticed my beers weren't as good. Astringent and clarity issues in every brew. Lots of flour and shredded husks. I opened the gap back a bit to where I get between 75-80% and all was good again. I think I have mine set at .035 now. Had it down to .020