I added 2 oz. extract at bottling, forgot to mix after adding the beer. The first few bottles had a strong choc. flavor, then realized I need to stir it up! After stirring, it has a nice subtle choc. flavor that complements the choc. malt and other roasted grains.
I might kick it up a notch next time, will see how this ages and if it loses any flavoring over time.
Thanks All!