One of my silkie eggs looks like it is trying to do an internal pip on day 16! should I start an early lockdown? both of my eggs are kinda dark, but the chick silhouettes look too small to hatch. They looks like day 13 in size. I didn't get a picture, because I use my cellphone's flashlight and another flashlight together to candle. I've ready every hatching guide possible, and most say that bantams often hatch early but don't offer any suggestions on how to optimize their hatching. What do you think I should do?
Extra info: They are the only 2 of 9 shipped eggs to get to day 16. I had two early deaths and the rest were scrambled yolks. All of the eggs had loose air cells and the two survivors' air cell didn't completely reattach until after day 7. I have them set point-side-down in chopped up egg carton and tilted 3-7 times a day. They are being incubated in a homemade forced air incubator with a water-heater thermostat, two light bulbs, three thermometers, and two hydrometers. the average temp is at 99 *F and 50% humidity. The last week because the air cells grew a little too fast during the first week at 30%.