Yesterday, I had 5 gallons of stout in my fermenter. I pitched Safale S-04 at 60 degrees F, and I accidently stirred the yeast into the wort before waiting for it to rehydrate (I'm afraid the yeast may have clumped). This morning I moved the fermenter to a warmer spot (68 degrees F), and shortly afterwards I saw bubbles escaping from the air lock (about one bubble every 1-2 seconds. Late this afternoon the air lock activity has stopped. Should I pitch another packet of Safale S-04 into the fermenter, not stir it, keep it at 68 degrees F, and wait to see what happens? Is this a good plan?