robster thank you for asking. wind wind wind and more wind. the meters are good at telling ve locity where were at, but not so good at telling us velocity at mid range and at target, very seldom can we pick up mirage. light fog and rain and leaf movement are as good as i know of. the wind blows in eddies through the ravines like water through rapids and almost certainly several different directions between me and longer range targets. what tricks do you have up your sleeve. my tricks are literally hit or miss