I agree with buzzbee. My first year I made the mistake of feeding, feeding, feeding after the flow to get more honey and then realized that all I was getting was converted sugar water. While the bees do add some enzymes, etc. to the stores and it does taste like a very light honey, morally I would never sell or pass it off to others as pure honey.
My husband and I did end up eating up what I collected that season but I am now in a place where I don't like to feed AT ALL unless I absolutely have to in the fall/dearth periods. I think it is much more important to leave real nectar-based honey on the hive for the girls to overwinter with than for me to harvest more for me and then feed them sugar water to get through the winter. The girls stay healthier eating nectar-based honey and i think, in the long run, will produce more anyway.