The problem isn't headroom. What's strange is that everyone has their own drawn line of how much headroom they think they should have. I myself think most people overrate the amount they "need" by quite a bit. A good PSU is underrated in my experience as well. Where does this fear stem from that you need 200W headroom? Is there even solid evidence that there are tangible effects in doing so? Even if it reduced longevity per se, I'd bet it be negligible, especially considering most people here upgrade components so quickly lol.