Sounds like things are going well. It is so nice when you see the results of your hard work and momma's coat becomes softer. I bet she feels better too.
I would give her more often, or at least, have some dry food in between to munch on..(began feeding her every 6 hours as much wet as she could eat in 30 minutes).
I spent five months in the hospital being tube fed due to an inability to eat/keep food down. I have to say that never once did the Dr's explain this as well as you did!! If an animal is anything like humans in this regards then it is VERY easy to get sick from eating to much, to soon following starvation!! I can remember when they first had me begin to try and eat that I felt like I could eat a house, I WAS STARVING, problem is that I tried to eat to much and it would not stay down. I had to start with Jello, broth and other liquid and then slowly move to more complex foods. One year later I am now able to eat almost anything, within reason, LOL!! I do remember that it took about 2 months of not getting proper nutrition and about two weeks of not being able to eat anything before the blood work showed up as severely malnourished. It was a much longer time to get the levels normal (sodium and potassium were what they seemed to be most concerned with and supplemented through the IV).I only know about human physiology, but you may want to google "refeeding syndrome" as it is a very real concern in humans. Not sure about cats, but here is the premise. A person starves for a long period of time so the body compensates in a nearly magical way maintaining nutrient levels respectable in the blood. Blood work will come back with great levels and everything will look fine until you feed that person a meal. What happens in humans is the body now begins to slam food into the cells in response to the underlying starvation state. With intra and intercellular nutrients severely diminished in order to maintain good serum nutrient levels your body soon begins to run out of necessary substrates for the process of metabolism, and you see levels start to go out of whack. This is a huge concern with recovering anorectics as well as rescued individuals who have been starving for days. You only have to starve for 3 days before refeeding syndrome becomes a concern....well 4 days depending on who you talk to. In humans it is critical that you renourish instead of refeed. This is a matter of life and death. Like I said earlier I do not know a whole lot about cat physiology however I would be looking into it simply based on the critical nature of refeeding syndrome in humans. It is likely not the same thing and almost certainly not as critical in a cat however it does warrant some investigation. Maybe someone on here knows a bit more about that. I have found many very wise sages on this forum since I have been here. Also, refeeding syndrome may not begin to yield symptoms for as long as 4-5 days.
Gosh please don't think of me as a fear monger...I am a nurse, which means I am always working even when I am not. I know cats are not humans, but maybe someday something I know may help someone with a cat.