My only addition to Mystic's advice would be to do a 10 minute mash-out and stir like hell as you are raising to mash-out temp, brought my eff way up once i started doing that. Let us know how it goes.
+1
Also, if you can, have whoever is milling your grain do a double crush. Efficiency will also go way up. I seem to be getting 82-86 percent on my last few.
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