Exactly, thats why I ran it at a TRT dose. Easier to tell if its good or not. From all the labs Ive seen, there seems to be diminishing returns as you go higher. But its hard to say at what degree because everyone is different and reacts differently.
Depending on how the current cycle im doing goes I'll look to do a 500mg test a week bulk and do bloods on that. I got some test e from another source here to do that though. Probably start that in August or September.
Diminishing returns is for your progress and the dosage. Diminishing returns does not apply to the dosage and how it affects your blood levels. There is a linear relationship between dosage and serum levels.