Agree for the most part. However, if the cycle was/is run correctly, i.e. duration, and you stayed at 2-4iu with success, say 4months, do you see any harm in giving 6iu a shot the final 2months?
Sure, if he responds favorably, but there comes a point at which the possible sides override the benefits.
I don't see any reason for him to go over 5 or 6IU for any duration.
Realize that most pro bodybuilders run in excess of 10IU ed, so you can see where we're going with this.
The last thing he wants is irreversible sides.....
The head grows, the soft cartiliage of the face etc...
DIV