I remember reading on Beesource Forums, Cant remember where. But anyway someone was trying a TBH with a complete four sided frame instead of just the top bar. It was shaped to fit the side angles and allow the right bee space to prevent burr comb. Anyone here try that and if so how did it work out? I guess the reason was to strenghten the comb once it was drawn out to the bottom of the frame and to promote a uniform comb.Anyone remember this? There were pictures of it also. Thanks Rob-bee