Most I've gone was 125mcg. But you could give mmaximus25 a shout on AR. I beleive he's dosed over 200 before.
I've been generally dissapointed in T3. It helps but I've found that it's not really worth shutting down production for the benefit it provides. Thats just me though.
"The tragedy of life is not found in failure but complacency. Not in you doing too much, but doing too little. Not in you living above your means, but below your capacity. Never failure but low aim, is life's greatest tragedy"- Benjamin Mayes
"The power of accurate observation is commonly called cynicism by those who have not got it"- George Bernard Shaw