I tend to be old fashioned, but when I got back into beekeeping I decided to be bold and try a variety of things... traditional wood & wax, pierco 1-piece, wood boxes, BeeMax Polystyrene, etc. Well the facts speak for themselves... First year I had perfect, solid worker brood on ALL the Pierco frames. Wood and Wax were OK but the bees put a few holes in the foundation and reworked some as Drone cells. Year two, the only hives that survived were in the BeeMax bodies. The Pierco frames are still all solid worker brood. The wood & wax frames... about 15% Drone brood. My decision was easy... all purchases this year were BeeMax Polystyrene bodies, super, etc and 100% Pierco plastic frames. I purchased all from Betterbee, but I am in upstate NY so that made my supplier selection a no-brainer.