Mate that was a good read. So correct me if I'm wrong but because protein turnover is greater with exogenous T3, would protein intake also need to be increased. Like 50mcg is double the natural output. So does protein turn over also double? So instead of requiring 1g protein per pound it's now 2g protein per pound. Understand where your coming from with the carbs and insulin to. Just unsure about protein intake and turnover rate. Sorry I didn't read that post of yours else where and you had to repost it.
Yes, protein turnover does increase. I'd say increase your protein inyake by 20-30% to start and see how that works. I'd also recommend doing so in smaller, more frequent meals so your absorption rate is higher.
If you increase calories in general, you will still get results, just not as good as if you were to increase protein intake foremost. Your body will perform more gluconeogenesis as it needs to. My advice is to stay away from scenarios that your body would feel the need to do so. A couple of examples:
1) avoid prolonged fasting periods
2) avoid stringent activity while fasted
3) Take BCAA's between meals and when its not practical to eat. The body will prefer these over your muscle tissue for energy.
4) Train on a fed state. Bring shakes and extra sources of carbs to the gym.
5) Try to maintain a "pump" all day long. Your body is not catabolic while the muscle is "pumped" and on a full stomach.
5) avoid huge carb meals. Just need enough to feed the muscle. You dont want prolonged high blood glucose levels if you are trying to cut up, hence, the reason to eat smaller more frequent meals.