I have a sure loc sight, and a cr apex round scope housing attached to it. What do you pro shooters recommend to use for a lens, a 2x, 4x, or 6x? I seem to like the 4x the best, but want some opinions. This is used for outdoor 3d shooting. Also I bought a sunshade for it, should that go infront of the lens or behind? My final question is, what should i use for a recticle. A fiberoptic, a stick on circle, or a stick on dot? What color? Thanks people for any help.