About 10 days ago I installed new packages of bees. All the queens are released from their cages and the hives are active as the weather has been nice. The packages were put into hives with drawn comb so things should get off to a quicker start that way. I want to replace the queens in at least a couple of the packages with Hygenic queens. So the question is how long do I wait for the hive to get established before replacing the queen? Also, if you know a proven source for good hygenic queens I would appreciate the information. Thanks!