I need to bottle my oatmeal stout tomorrow, and (partly due to a complete loss of time at this point in my year) I'm going to put most of what is about a 2.5 gallon batch in a Tap-a-Draft bottle. There will be a little left over and I'd like to bottle it for testing during the aging process (important research, don't you know). I don't have any carbonation drops, so was wondering if anyone had a sensible and safe rule of thumb for cane or corn sugar by measurement per 12-oz bottle. Since it's stout, low carbonation is not only safe but within style.