I assume that you have PCT for both the superdrol and the cytomel lined up?
Personally I would ramp up the t3, but keep the superdrol at 30mg throughout to stave off the inevitable loss of muscle.
Your diet also will need to have a "moderate" amount of clean carbs just so you don't feel like complete garbage because of the glycogen storing effect of superdrol.
I would even run the superdrol for four full weeks (with proper pct and liver supps) so you would have a full week to bump your carbs up a bit and hopefully get your thyroid levels back to semi-normal. I would start a thyroid pct during this week as well.
All I know is:
Depressed thyroid + depressed natural test levels = muscle loss and fat rebound.
But hey this is just brotelligence, I could be completely wrong.