with a regular langstroth hive, people often talk about a managment procedure where in the spring you take the top box (containing the cluster) off the brood chamber and put it on the bottom of the stack. some folks talk of checkerboarding the boxes that are now on top.
what happens with a top bar hive?
presumably the bee's tend to have their brood toward the entrance of the hive and the honey behind it. during the winter the cluster moves into the honey area. in the spring do they move back into the front of the hive to raise new brood?
the reason I ask is because I'm thinking about the fact they build different size cells in different parts of the hive.
seems like you want to avoid them laying in the honey area where they presumably have larger cells.