I'm just curious what has worked for you as I am getting close and debating on what to do. I have done 2 hatches with bantams. The first was lockdown on day 18 and they pipped and hatched right before day 19. I did some research and saw that some suggest lockdown for the bantam eggs on day 16. So next time I did that but they pipped on day 20 and hatched on 21. So it didn't seem to make a difference for 1-4 days of lockdown. I'm on day 17 this afternoon and I was thinking of starting lockdown then. These eggs are from hens that had only been laying a month or so and they are smaller. Although my last batch was small too. What has worked for you?