I bought the original CW Black model and like it. Light weight, super bright and smooth twisty action. I bought the Autumn Copper and bead blasted Titanium models as soon as they came out. The Copper is markedly heavier than the other two. The threads on the Copper are smooth. Perhaps they feel a bit slow. But smooth. Yes the Titanium threads feel tight. Not real gritty. Ok, smooth but quite hard to turn. I tried lightly lubricating the threads with NyoGel and the later really gooping up the threads. Helped. On the Titanium, I removed the o-ring and the action did not get better or smoother. If I press in a bit on the head while twisting it's much smoother. So an employee of mine gets the Titanium one for Christmas
I play string instruments and have at least medium strong hands and fingers. In a practical sense this is a two handed light. Once twisted on, the head clinches up and needs more pressure to twist off. Changing outputs reliably with one hand works best on the black version. The Copper I can turn on and off. Titanium? Glad I could turn it on with one hand. Many times need two hands to twist it off.
The tint on both NW were identical. I do not see any green with mine. I have enough XP-L's to know what green is. (I think)