The best way to perfect your archery angle aiming is to get up in a stand about as high you like to hunt, have a friend move the target 20,30/40/10 yrds. etc. After you shoot enough at one distance be confident the friend can move the target, bring back the arrows and send them back up to you w a cord and a bucket/pvc pipe.I only use 2 pins on my bow, The top one is for tree stands.If the deer is 10 yrds.my pin is about knee height under the deer.20/30 yrds about dead on. The lower pin is set for 40/50yrds and works on the ground too. With distance/angle practice the aiming comes naturally.