I did lots of Deca when I was younger, even at High Doses.
And Never experienced Deca-Dick.
I attribute this to always running Proviron with All my Cycles, not just the Nandrolones.
While it doesn't have a Dramatic Effect.
It does a whole lot of Small Things, that when combined, result in a Superior Cycle.
It binds to the Aromatase Enzyme, thereby helping your AI work better.
It binds to SHBG, thereby making more Free Test available to work Synergistically with any Hormone.
It Boosts Libido, and who doesn't like that.
And lastly, because it's a DHT, it prevents DHN from binding to the Receptor, and causing Deca-Dick.
So if you haven't tried Proviron on any Cycle, including TRT, you're missing out....................... JP