I'm bringing this thread back to life because I plan to change to a set of fixed BUS on my AR. I'm waffling between these exact two sights. I could have flipped a coin and gone either way until I learned that the Troy sight uses a same plane aperture and the DD does not. At least that's how I understand it to be. Now I wonder how much real world difference this will make. Are there any real pros/cons to either type of sight?
I'm not looking for "I have XYZ and it works for me" type responses. I'm looking for what benefits one type of aperture may offer over the other, or if it's not something I really need to worry about.
Thanks in advance to anyone who can help.

