thought this may be of some help to us. been hunting deer for over 40 years with bow.i always used recurve and practiced at 20 yds,no sights.then compounds. i used the 20 yd pin only.now, folks are using the crossbows which i tried and used the 20 yd line in scopefor all hunting.i never take over 30 yd shot.i know of many deer that were missed because of not using 1 LINE in scope or pins on bow.just last year my cousin had 30 ydline on deer that was at 20 yds and he shot over deer.my way of doing it and this will not happen.what is your opinion and why?