I'll just say, about plastic foundation...
Years ago, I bought several thousand Pierco one piece deep waxed plastic frame/foundation. Hated it. Still trying to get it out of my operation. Bees didn't draw it well. Frames too flimsy. Edges sharp and make sore hands. I have used plenty of Pierco medium waxed plastic foundation i wood frames...for extracting. Acceptable but not great. Slow in drawing.
Last year I discovered Acorn plastic foundation. Better cell bases. Crisper and more defined than Pierco. I bought it unwaxed, and set up a dipping tank to use my own wax. Temperature at 190ËšF. Tried it last year. Wow! Bees are drawing it as if it were wax. We're getting 10 pounds of wax on 100 sheets. Nearly the same as wax foundation....wax foundation is 7 sheets to pound. Maybe that's the trick.