Ive got babies hatching right now, with 10 eggs in there that go into lockdown tomorrow. My last hatch, I had eggs bating with eggs hatching.
I up the humidity for the hatchers, and really up it when I see pips. Actually, my hatch rate has increased doing it this way (in a hovabator) then when I did hatches in other bator (which was a stupid LG).
I candled the 10 other eggs right before the lockdown of the 4 currently hatching. All the eggs were in the bator during a hatch last week. All the eggs were moving just fine at candling.
And lockdown for me isnt really lockdown. I did real lockdowns on 1st 2 hatches. Got 0/4 and 1/9. I open the bator now all the time to rewet sponges, spritz. 1st 2 hatches, I tubed water in through vent holes.
I have had 5 sets of eggs staggered hatch in bator at one time. It can be done. I just cant use my egg turner now. You can set it up to do the tilt method if you dont want to open the bator. I have done that as well, which is why the other eggs are in a carton.
In fact, here is a pic of whats going on right now.... see the 2 eggs behind carton?