All the extract kits I used to do said put the grains in as the water is heating up. When the temp reaches 160 steep for 20 min while keeping the temp at 160. Drip drain bag thoroughly (dont squeeze), raise temp and add extract and hops at boil. You'll be fine. Stirring is good.
Fermenting: 12g Elevated Line California Lager
Kegged: Elevated Line Toast IPA, Founder's Breakfast Stout Clone, Elevated Line Blonde, Elevated Line Christmas Molasses Porter
On Deck: Death by Dunkel, Mango Lambic?, Barleywine, Wheat, Cali Lager, Pilsner, Honey Porter, etc., etc...