Your biggest worry right now is her developing egg yolk peritonitis, egg bound is when an egg is stuck in there, shell and egg oozing out of her is a different story. Egg yolk is a perfect breeding host for many kinds of bacteria. You may need to get her started on some antibiotics.
What are you using for heat in your brooder! Sometimes changing to a red bulb helps this, it keeps the blood from being so visible. Blue-cote any bloody areas so they stop pecking them.
Use your nose. A stinker usually stinks BEFORE it explodes. I take my egg trays out once a week and give them a good sniff, each egg. I have had exploders before, and they never affected my rate of hatch as long as I took them out promptly and cleaned up any mess.
But you can almost always...
Let them be, they should be able to handle it themselves. Sit on your hands, leave that incubator locked down, and try to keep calm. Many things can affect what day they hatch, temperature fluctuations and the like. If they have internally pipped and are chirping in there, they will be doing...
If they are hatchery Rhode Island reds, they may never go broody. The hatcheries have bred that out of them, focusing on egg laying.
I have had plenty of incubator born chicks grow into fantastic brooders, I have found it depends more on the breed and background then how they were hatched.
I haven't found a tried or true method for solving egg eating, it seems what works for some, doesn't work for others, and sometimes that habit can never be broken.
The first time is the hardest, but it is an easy process to learn. I was raised a farm girl, so extra roosters are just cooking materials to me unless anyone wants them as breeders. I like to process them at the first major crow, they aren't as big as a grocery store chicken, but they are a lot...
Just a question, do you not worry that the single egg you have the thermometer taped to may be in a hot spot in your incubator? I would be so worried that that single egg would be in a hot spot and the rest of the eggs would be cooling down as the temperature is set for the optimum for that...
I would brood them separately for a variety of reasons. Age difference mixed with the size difference being the main two, you don't want any squishing to happen I am sure.
I would get some fake eggs or golf balls to test their actual broodiness. You don't want them to get eggs started then abandon them. A true broody hen will keep her butt on that nest almost 24-7.
I just set every Tuesday. :) That is a pretty interesting chart though, I would love to see someone set hatches by that chart and see if there is a difference.
You also have the option of only free ranging in the late afternoon, they will wander around but not far as they like to stay close to their perches in the evening.