I have the Burris ff3 and the vortex venom. I like the low profile of the vortex venom better but they Only had the 3 moa when I got mine so It’s not quit bright enough on sunny days for me. I switched to the Burris and have not had any problems with it so far and I can pick up the dot on bright days. If they would have the vortex in the 6moa I would have most likely chosen that one to be my main red dot on my pistol.