When is to much?

At what point is the dose to much? Looking for warning signs etc to back it down.. I am up to 80mcg pre workout or split dose on non workout days, and about to try 100mcg for a few days... I have not really noticed anything different from 40 to 80

I didn't feel any difference whenever I surpassed 100mcg daily . It was a waste and a lot of guys have said that as well.

If I were you I wouldn't go up past, 60mcg , considering your thread with igf review , it sounds like your responding well at lower dosages,

But back to your point, yes once you hit your peak threshold let's call it, then anything more than that you would not feel like you did going from 10 , to 20 to 30mcg

Not sure I explained it well sorry