I had a Leupold converter to a Premier Reticle with a extra horizontal line representing 10 inches @ 200 yards for the backbone-to -belly range indicator. Like Obsessed1 said, and in my parts of the woods too, they don't stay still long enough for you to use it.
The drop dots and the 10 & 20 mph wind indicator dots works [beeep]! I've Waxed several crows in a 20 mph crosswind. One second there is a pile of feathers in the air......the next there is a group of feathers, all moving crossways, @ 20 mph! 
Pretty Neat!
