I've never raised queens in a top bar before so I have a fairly simple question, I think. In my langstroth hives I put a queen excluder on to keep the queen from coming up and destroying the queen cells. I'd like to raise some queens in a top bar hive and now I wonder if that will work without some way to keep the queen away from them. I'm not sure why I used the excluder other than I was taught that the queen would destroy any new queen cells. How does this work in a top bar hive?