dnk, go to front of class, you are right.its not that most dont know DISTANCE,its they get excited and use WRONG pin or line in scope.sighting in scope or pin at 20 yds dead,i can hold a little low at ten,little high at 30,if you want. a deer isreal big target behind shoulder.1 pin/line puts stop to one more thing that you have to be concerned about.keep it coming guys/gals.