Given that 4 of my chicks hatched early on day 19, and thankfully are doing well, I'd seen nothing from the other eggs. So I candled the remaining 6 and had 2 still with a visible vein, the rest had nothing except a dark mass. So I opened 4 with no veins and found of course, perfectly formed chicks except for the eyes in 2 of them, one had its foot smushed against its eye. The membranes seemed very dry, they had not pipped or broken through the membrane at all. The one with the foot smushed against its eye had head down. So it is day 23, and I have 2 eggs I'm unsure about. How long should I wait before giving up on them? Tomorrow morning I'm pitching them for sure after I open them to investigate. Thanks. This was my first hatch. Incubator: LG still air with turner. Thermometers: 2 (one digital, one dial) Next time I"m buying a fan to help prevent temperature regulation issues!