I'm on day 20 so I went ahead and checked the air cell size without actually picking the eggs up and Crackles my cracked egg that was repaired with wax still has an extremely small air cell even though I waited until today to increase humidity. The rest are large and drawing down for hatch so I'm going for humidity for the many instead of the one but I'll be SO sad if this little one doesn't make it since I was really hoping this would change my outlook for undesirable hatching eggs. Well, we will find out soon enough!