"Won't the bees mess it up without foundation?
Answer: Sometimes. But they mess it up sometimes even with wax and even more often with plastic. I've seen no more bad combs doing foundationless than I have using plastic foundation. Some of this appears to be genetic as some hives build good comb even when you do everything wrong. Other hives build messed up comb even when you do everything right and simply repeat the "mistakes" when you remove them. "