After I get my safty harness on I find myself going...That tree is 23 yrds,that stump is 17,that tree over there is 31yrds then I mentaly set up my 20 yrd perimitor....then I mentelygo thru my drawing of the bow for differant shots.....Then wounder witch way the deer wil be comeing thru......and alot of other lifes ?...