I am just aware that I have to aim my head down more to see what is closer to walking, enough so that it is annoying. I attach two pics. I am surprised to find that the angle of the nitecore and the iota are identical, but the tikka xp2 inclines by at least 10-15 degrees more. I like the iota A LOT, but I have the complaint that it does not project well, it does not have a hot center, it is very even. The level of diffusion of the iota probably allows it to project a wider beam and is why the incline angle does not bother me; I believe that the beam of the nitecore is narrower. But I think that this can be easily addressed by the simplest of padding solutions to slightly change the angle.
Regarding the corona problem, a quick mod seems to work, but I really must test it on a trail to tell for sure. I just put scotch tape on the lens and cut out a hole in the center, thus fuzzing the edges but retaining the hot center I like so much.
BTW, perhaps because the nitecore is so light, the minimal headband is not uncomfortable.


