If you can add bacitracin with no painkillers to the water you're using to wet it, you can do it less often. Wet it so its clearish. And keep it that way. Time wise, just watch to make sure it doesn't turn white. Keeping it moist also gives the veins the ability to absorb. The yawning and peeping and squirming is the baby going through stages of hatching and yolk absorption. The baby can breath and has lived in the egg for 3 weeks... It's in no immediate danger!!!
If your bator is circulated air (has a fan) it should be at 99.5°, still air I believe is 101°. Your temp is low.
Just reread, aim for 99.5°
Let him continue to work at this.... He's an early bird! With temps like that though, watch out for sticky goo. If you gently put a qtip between baby and internal membrane does a clearis yellowish very sticky substance come out?