After reading countless glowing reviews, I just purchased my first Tangent Theta 5-25 with the Gen 3 XR reticle. I own half a dozen Nightforce ATACR scopes with Tremor 3 and Mil XT reticles. Perhaps it is just me, but I find the Gen 3 XR reticle almost unusable below 12x. It simply becomes too small. Above 12x it is great all the way to 25x. The Nightforce 5-25 is usable throughout the entire magnification range. The Nightforce 7-35 is good from 7- 30 before the reticle becomes a bit too thick. The TT diopter locking knob feels cheap, the windage and elevation markings are too small, and the parallax knob is too stiff. Frankly, while the glass is superb, it is not noticeably better than the ATACR glass unless you make a massive effort to discern a difference. Better eye box is the one feature that is obviously better than the NF scopes. Overall, the Nightforce ATACR scopes seem much more robust. While I realize that Tangent Theta scopes are considered the top alpha scope, for $5k and up, I am not particularly impressed. Who am I? I'm just an ordinary former Marine 8541 (1984-1992) long range shooting and reloading enthusiast. I'm returning the TT to EuroOptic. I have a ZCO 4-20 on order and have high hopes that it will best my Nightforce scopes. We shall see.