If I quit turning my emu eggs before day 48 will the chick die?

I have eggs in an incubator for emus. I have read several different articles and even studied a handbook that I have. At about day 42 I noticed one or two of my eggs being very active. I have tried to keep turning them, but they always roll back to the same position so I marked them and left them. I have noticed in the last day or so that they are not nearly as active as they were. I have not heard any "cheeping" from them or any signs of "pipping" But just about 1/2 of what I read says to turn for 48 days, then quit. I am still a few days away and they haven't been turned in a day or so.. Does anyone out there know enough about incubating emus manually to know if I still have a good chance of these babies hatching? I have a great success rate out of my male emu setting eggs, and for the last 2 years the incubator has been at someone else's house and they only had 1 baby ever hatch and live. This year we are trying it at my house with different temp and humidity levels (the right ones) and with the activity levels in the eggs I know it's working. But now they aren't being so active and I don't know if I should really worry that they are dead/dying or if it's normal for them to be active for a bit, then "rest" before breaking out into the world. Please if you have RATITE experience I'd love to hear from you. Especially if you have incubated manually successfully.