So i've thinking of making what equipment I can. I've been thinking SHB hate light and retreat from it. And I know one company just came out with a translucent inner cover. Why not cut out your plywood cover as usual, then cut out two squares on either side. You would leave a strip in the center forthe normal hole, but cover the larger holes with cloroplast (election signs). This would allow more light in especially if you used a plastic cover from Walter Kelly. Opinions?