Thanks for the advice! It helps provide some more direction. I noticed some replacing emerged brood with honey, so I'm thinking they may be on there way. I opened up nest, but will check again this weekend. I am also getting equipment ready and have been reading on what to do if I must split. I know that swarming is a natural tendancy, so if it I have to prevent it, at least I will know my hives are healthy....otherwise they wouldn't be able to do so.
I suppose if I do a split, can I go back and combine before the main flow to get more honey, or would this be counter productive? May be another question for another day.