That's amazing if it's going to hatch 5-6 days early. Like @TwoCrows said your temps are within range, but if it mostly ran on the high end of 100.5 for 15 days, that's 1 degree over the preferred setting of 99.5. I could see eggs maybe hatching a day or two early in that case, but 5-6 days? Beats me! I can't wait to see what comes out of that shell!
That egg is definitely rocking! Pipping will be the next stage. You might see a pip by morning or sometime tomorrow. Definitely stop the turning so the chick can get into the hatching position. Hopefully all the eggs are at the same stage and follow suit soon.
Yes it's not preferred however eggs can stop being turned at day 15 instead of day 18.
I would do it now so you're done and don't have to open it up later and risk shrink-wrapping any of them.
Shrink wrapping doesn't happen immediately after opening the incubator. Takes several hours of little to no humidity for that too happen.
Well that's one that's definitely debatable. Seen it happen myself.
I open the incubator alot, never once had chicks shrink wrapped from it. I only had shrink wrapping happen once when mom forgot to add water to the incubator once early in the morning, while chicks were hatching. Incubator was down to 14% for several hours.
