I mixed for that same reason. I was using time alone in lieu of the floc test. Maybe something I need to look into changing as I get more experience under my belt. I am sure as I go along, I will start to pay attention to all the intricate details of my makes such as PH levels, etc. For now, as I learn, I am just a recipe follower but I am getting hooked and getting my techniques down for controlling temp over time,etc.