I posted this in the recipe section but haven't received any feedback. On Saturday evening I drained my oatmeal stout into a 6.5 gallon carboy around 9p.m. at about half full I stopped and gave the carboy a good skaking for aeration. I finished filling it and then pitched my yeast starter on top then gave it another good shake to get it nice and mixed up. By 10a.m. the next morning I had a good fermentation going with steady bubbles coming from the airlock. As of yesterday the activity has slowed significantly and I never really got as high a level of krausen as I have seen in some of the pictures on here.
Should I give the carboy another good shaking to suspend the yeast some more as well as aerate or just let it sit? My efficiency was about 75% this time around which is a great improvement on my first batch that was about 55%. The OG was 1.045 and pre-boil was about 1.035 boiling from 7 gallons to around 5.5. Does anybody have any suggestions or is this typical of an oatmeal stout?