This year I'm actually aiming for a little lower humidity and somewhat deflated eggs, as you can see in the link Mike posted. My first clutch looked dimpled from the second week, and I left them that way until the end. I hatched out 6/6 plump, healthy babies on day 53, with weights of 76g, 79g, 81g, 81g, 83g and 84g. I also always do substrate-less incubation.