So I'm relatively new to home brew. I've done a Christmas Porter, a raspberry and have a stout in my secondary. I've been pleased with the porter and raspberry. I've done all of these from established recipes. I follow the directions as far as the amount of time they sit in the primary and secondary, but I noticed with the stout that the fermenting seemed to end sooner than the recipe called for. When should I move it over? When the recipe indicates or when the airlock is no longer bubbling?