Fair enough. I can tell you that without gear, despite being far stronger and faster than while on gear, I looked very different. I looked more "full", more like a power lifter than a body builder. It never bothered me so I didnt care. But right now, after just 2 cycles, I have definition that I had not seen before. My muscles look far more defined even though I am heavier, weaker and slower than a I was when I was young. So in my experience, you are right, going natty is probably not going to give that dramatic of an aesthetic unless you have extremely low BF which is also not easy without meds/gear. Roids definitely impacted that a lot for me even in a short amount of time. Hell ive only done tren one cycle in low doses and damn...
Look health is not a factor of what you take but how it impacts you. No two people will react the same so in other words, the reason people might be frustrated with your post, is because there is no way for anyone to answer your question accurately. You have to try it to see. Some people have zero sides from tren while others go bananas. In my case, tren does nothing but you know what does? Anavar. Anavar makes me shed hair like a dog in summer. Its horrible. But Tren does nothing. Nor does Test, Deca, NPP or Primo.
So you wont know till you try. As for damage, there are consequences to waking up in the morning and breathing. By being alive, you are dying every day. Thats the human condition. So its not a question of whether or not these do damage, they do, its about what you think is tolerable. For most around here, they will pull bloods to make this determination. Lipids, metabolic, E2, thyroid stuff, apoB, etc. If these look good, and they dont get crazy sides like hair falling out, or mental impact, or sleep impact, then they define the risk as acceptable. There is no way anyone can tell you how you will react. Start slow, work up, pull bloods, re-assess.
Also saying something like "without looking too huge or freakish" is silly. Do you really think you are going to wake up and suddenly look like Arnold? Come on man. I dont care what you take, that wont happen without years of training. You can stop any time you want.