I've only done one previous cycle, but the one i'm on now dwarfs what he is doing. Its a personal decision, if you are educated with a result to possible side effect ratio, and know how to build a proper cycle, then let him do it.
1500mg is not going to kill him, he obviously knows how his body responds to testosterone in supraphysiological doses, so it might be right for him. Just because it may be right and work well for one person, doesn't mean its right for everybody. God my first cycle was test e and deca.
my current cycle is:
test e
test prop
tren e
igf-1
t3
slin
gh
var
letro
pgf2a
thats quite the jump eh?
