Thanks for the update Michael. Since I only have top bar hives, and just 6 of those at this point, I won't be of any help either. It seems to make sense, but it would be nice to know. Without a doubt, if I can keep the hives from swarming they more than double the honey production. I am trying to do some opening of the brood nest with empty bars BBEBBEBB etc. Will see how that does for me. Thanks for your great website of reference material.