Ross Rounds for the bee garden in 2017

last year when there was a sale on, I bought three ross rounds boxes for national size hives, I have two of them over my woodland, one on a national and one on a commercial, here's a quick clip of them, I think it proves to myself that you need a hive that's overflowing with bees to get these filled, therefore using them on a hive with two brood boxes should do the trick, I will be running both the langstroth hives with double brood boxes before adding the flow frames, so I will add a third hive to the secret bee garden, a national hybrid, run it on double brood, and then try one or two ross round boxes on them