A Keeper about 12 miles from me has 2 horizontals and 3 Traditional. Trying to catch 'em at Granddaughter's ball game to talk. Me, being an old dog, look at it simply. Bees have been working vertically since time began and with our winters I would think the odds are not in my or the bees favor moving horizontally. I do read keepers in the south have pretty good results with this method. I am not willing to invest time, money and the possible loss of bees. I am interested in how this method works for others though. Keep us posted.