OK after several attemps with eraser and two batteries(new) I finaly got it working,its perty neat,shot it at 10yrds with no trouble then after a few adjustments gotit dead on at 20yds then ran out of time,cant wait to shoot 50 with it.the only time Ive realy shot 50 with a bow is in 3-D shoots.
I have the speed dial set right in the middle of the 3 asin 300,two clicks down for Vertand four clicks for the horzonal and wack right on the 20...