Hello. I run about 350 colonies for honey production and have requeened with mated queens. I try to do this towards the end of march. I have recently found that the splits I make with just a couple frames of brood and a queen seem to almost always take the queen. On the other hand with the large overwintered hives I'm not getting as we'll of a take and it seems that about 40 percent of them are queenless with cells when I go back and check in say 10 says. These that do this seem to always get back queen right but I've wasted a new queen only to have them make there own. My question is should I be just requeening with cells instead of mated queens. I have also just thought of killing the old queen and letting them raise there own from the start. I seem to have better production and almost no swarming with a new queen is my reason for the annual requeening. Thanks tracy