I have been cutting up my foundation and using it as starter strips. I needed 5 deep frames to put a deep super on a nuc today so I just stuck 5 full sheets of foundation in and checker boarded the super and the nuc. I came back 45 minutes later to pull a frame of bees from the nuc and the foundation on the #5 frame already had comb being drawn on it. It wasn't A LOT of comb, but there were several spots the size of a quarter that had white wax on them. I found that amazing.