I'll guess I'll do like I did last time I did a T3 cycle. I started on 25mcg then gradually worked myself up to 50mcg and then back down. I didn't get lethargic this way and I didn't lose any muscle. Considering the fact that I wasn't using any gear at the time. But now that I am using gear, should I go higher? Maybe up to 75mcg? Or am I really asking for a shut down of the thyroid this way?