Yes, high humidity keeps the egg from loosing moisture which in turns keeps the air cells from growing. You want to find a range that will allow the eggs to loose moisture at a good rate.Oh I read your thing and I was confused before, I thought more humidity meant the air sac would get bigger and the lower the humidity the smaller the air sac, my guess would be that would be the problem, I kept it high thinking it would help so I will keep it lower to start and then about where I had it this time for lock down.
