What’s happened to the advice that fondant fed during winter should be placed directly over the frames or on a queen excluder to make it accessible to the colony. Me thinks this was the advice before we all got involved in superinsulation were bees can happily wander round naked! I’m a takeaway container over crown board guy with lots of insulation around & on top.I use chinese take-away containers . I cut a round hole in the lid (approx 3cm diam). Load fondant into the container, put the lid on, invert container and place over the feeder hole in the crown board. Put an eke above the CB to support the Kingspan insulation. Then put the roof back on, (WBC hives). Easy to see when the bees have taken most of it and the fondant doesnt "flow all over the frames".