You bring up some interesting points, but CM is only 50% aesthetics. The other 50% is tradition. So you have that as a constraint.
Though in principle, what you say can still be applied. Charcoal trousers with a black turtleneck, for example.
Take that to the extreme and those people would have multiple copies of the same outfit hanging in their closets, I guess.
I have duplicates of two suits in my wardrobe haha. It happened completely by chance though. I bought some suits in a lot online and two of them happened to be ones I owned already. It works out.
Sorry, I didn't have time to continue Round Whatever of the Charcoal Trouser Debate. I had to watch LeBron do LeBron things. But I do have this for you ...
It would be great, if Mr. Six is up for it, to have a few shots of that beautiful Formosa with different trouser combinations, for all our edification.
I hate to excuse crap photos, so I'll just say that these are crap photos that I took quickly for myself, but I agree that it might result in some interesting conversation.
Sort of Air Force grey/blue