Is it possible for comb to become too old or too used for the queen to want to lay in it? I have a number of frames that originally came with nucs. It is apparent that they have been in use for some time as the cells appear almost round and smaller than new comb. With each cycle of brood, the queen seems to lay in progressively smaller random patches while she heavily lays in newer comb. This seems not to matter if I put the old frames in the center of the brood box or to the outer sides. The underlying foundation is black plastic.