I finally got around to removing the mason jar feeders and installing the small Ceracell feeder on three of my nucs. And we are off to the races. I had been going through a pint every 3-4 days on the stonger nucs. Those same nucs are now going through 1/2 gallon every two days and are drawing new comb very fast, two deep frames in just one week. The nucs with the mason jars are plugging along at the same rate as before. Conclusion, I need to buy more of these things. I still like my Beemax feeders from Betterbee, but the Ceracell feeders are a better product overall in terms of design and ease of cleaning. Only drawback is the poor fit of the feeder frame.