. I have a titanium 2012 d25a clicky and just got a black 2013 today. They totally redisgned the head the 12 head has brass male threads and is sealed. small and very smooth. The 13 has a female head and it's able to come apart. Aluminum threads very rough and gritty. Besides the obvious xml and xml2 differences
Now that I look at mine, I have to agree - my 2012 Ti knurling starts significantly lower from the bezel than the pix above. So it sounds like maybe there's a '14 model where moonlight '12 < '13 < '14 ?