I have been thinking about getting some new sights. I have rapidly aging eyes, and have difficulty keeping focus on the front sight. I have tried the XS big dots, but don't find them as accurate as I would like at more than 10 yards. I have been thinking about a triangle system and have been looking at the Advantage Tacticals or the Speed Sights. I really like the idea of a sight that can be reasonably accurate while using "secondary focus." Any tried both/either of these? I have read the Suresight thread. I'm sorry for anyone who was taken advantage of.