Re: Miller Feeders
You should also check out the Beemax hive top feeder by Betterbee. They are made out of high density Styrofoam and hold 3 gallons of syrup. I get very little drowning and the feeder is all I use as top insulation for the winter. They are a little pricey at $32 but a few of mine are over 3 years old and are holding up well. I currently have 20 of them, one for each full sized hive.
Thankfully, the bees are smarter than I am. They are doing well, in spite of my efforts to help them.