That's interesting that you refer to it as an ESB. Most bars around here (West Michigan) were classifying it as Short's version of a Marzen/Oktoberfest! I guess I can taste a bit of both, although technically it IS an ale. Not sure why your six was sour, I've had a few of the Autumn and they've been quite consistant. The Huma on the other hand has been great in a bottle, but tastes like soap whenever I get it on tap!