So, the potential yogurt has been removed from the 'incubator' and placed into the refrigerator to chill overnight. It seems to be a bit too runny but, according to several sources, this is normal for homemade yogurt. It will be interesting to see what the result is tomorrow morning. I have to wonder if pouring the mixture into several jars prior to incubation has made a difference in the outcome. Also, I think it might have been easier to simply incubate the mixture in one pot and separate it into the individual jars prior to refrigeration.
At this time, I think that I will revise my method in my next attempt - no matter what the result of this attempt is. I will likely be able to monitor the progress better and have a more consistent result by making one large batch rather than several smaller individual servings.