Yes, I had a few deaths for the first 24 hours but 1 week in now and back to activity. Tomorrow I shall close up the entrance again as wasps prospecting. It seems all ok with my brand new queen as saw eggs in her hive - which I have not treated yet, i was waiting to see if she is viable. I used MAQs on my other 2 hives and am thinking of putting apiguard on the new queen's colony tomorrow.