I really like my 1-8 Trijicon Accupower (credo now). It's heavy but it's a nice clear sight picture and works great throughout the power range. It works fine with or without illumination. The reticle is large but I like that on this type of optic. It works great from 1-600 yards. I have a Viper PST 1-6 too. It's nice, the red dot illumination at 1x does it's job. I dislike most FFP LPVOs because the reticles are too small for my old eyes to see, and I find them useless at 1x if the illumination isn't good. I don't particularly like the eye relief issues with ACOGs either.