Hi All. I got my sample of plastic 4.9 a couple of days ago. Unfortunately I don't have a strong hive to put it on, due to a major pesticide kill three weeks ago which left my bees badly weakened. The hive I'm planning to use was recently shaken down onto 5mm foundation, from 5.4mm, and is drawing it nicely. I'm going to give them a box of the plastic, with two or three frames of wax for comparison. As there's only 1mm difference, I'm hoping they won't have any problems. We'll see how it goes. Regards, Robert Brenchley [log in to unmask] Birmingham UK