I have quite a few hives that are more than ready for a second deep; however, the bees will not move up into the new box. Like I said, they are pretty packed into the first hive body. I would like to try checkerboarding, but I don't have any extra drawn comb to work with. So the question I have is this: can I checkerboard with undrawn plastic foundation? If so, should I brush extra wax onto the foundation. Any and all input is well appreciated. Thanks.