I stir really well when I mash-in, then close the cooler and leave it alone until it's time to mash-out. Add the mash-out water, stir, vorlauf, drain; add the strike water, stir, vorlauf, drain. Boil.
Primary/Secondary: #126 American Pale
Kegged: #124 Lagunitas IPA clone, #125 Northern English Brown