sproule to rescue..
here we go kids.

dial-a-range should be set on no.1 not zero for 10 yards..
no.2 for 20 yards..
now, sight bow in at 10 yds on 1,then go to 20 yards and set it on 2 and SIGHT IT IN..

LEAVE it on no.2 and use the first or thick high crosshair in scope, thats your 20 yd one.
next one is 30 yd,then 40 yd, then 50 yd..

dont move the dial a range off no.2 once you sight in from 20 yds..
keep it on no.2 always..

thats it from sproul .................................................. ..............