While some people claim to have had success by mixing drawn and undrawn comb (and I have no reason to doubt them), my experience has been that putting drawn and undrawn comb in the same super is a recipe for a mess. What I have generally observed to happen is that the bees build on the cells in the drawn comb to produce a frame that is too thick to remove without removing the adjacent frames. The result is a "Chinese Puzzle" super that can only be assembled and disassembled in a specific order (if it can be done at all). W. G. Miller Gaithersburg, MD