anytime you make a split or take a queen from a hive and introduce a new queen you must check for cells for about a week or two, this is the only time it is a good thing to remove cells, you want to keep your queen you just bought, you have to remember when a queen is missing from a hive a very short time the bee's know this, they might start working larva then, when you introduce a new queen she has a different smell and then takes a few days for acceptance then maybe a few more days to start laying, they could think something is wrong with her. I have a friend not for from me bought 30 marked queens a few years ago and he had a 10 hives on a out yard that I watched over, he re queened the 10 I looked after for him and 20 at his place, after a month he called me telling me that those queens was duds and 17 of the 20 was replaced, I told him the all 10 at the out yard still had marked queens because about 6 of them started cells and I took them out. introducing queens is not just take one out and put one in, if you want to keep the queen you bought you have to keep the hive cleaned out so she can get started right, the odds that you bought a virgin queen from dann is slim to none, when you buy a queen from him that queen has been laying about 3-4 weeks and evaluated, he sale a bunch of queens but not like the big guys do, I know everyone has heard or read someone saying them queens must not be to good because most of mine was superceded, and all they did was buy a nice queen and let their hive re queen itself in the end and that nice queen either leaves or gets killed, I all way's think what a waist. I think Dann started sending out a memo with his queens telling to check for cell for 2 weeks the last year or so but dont know if he still doe's. it happens more than most think!