Comparing it side by side at 500yds with my SN-3, they're very close in clarity. Resolution and FOV favors the USO IMO. It's hard to hold the MK6 steady so i'll be able to get some better pictures when it's on the rifle. Though phone pics are basically to show the reticle as they don't represent clarity. It's brighter than my SN-3 but i feel or am used to the dark tone of my SN-3 which i like. On most accounts they're pretty equal. I think glass beyond a price range becomes a personal and negligible quality to be honest. My mark 4 has good glass to me, for some it wouldn't suite their taste. The pics are crappy of the TMR but it's the best i could do at the moment with the scope set down. As i said i really have come to like the FFP TMR reticle more so than i thought i would.
GAP reticle and TMR reticle at 9x
TMR at 18x and GAP at 17x