I been thinking about this shit a bit. When it's time to hit my next cycle I will most likely run another test only cycle due to its cheapness and it's effectiveness.

But, what kind of real life difference would I see if I ran a stack of lets say NPP & test? Or even like Deca & Test?

I know the sides seem harsher from some types of juice compared to just test. But, what are the benefits? I mean test alone seems to do wonders. . . .

The only thing I can think of is maybe muscle hardness, I guess. But, as far as growth - WTF does it do differently?