Here's what gets me mostly at 3D......NOT knowing the yarages when I step to the stake. I know I always have to guesstimate.....and that's fine....but not KNOWING is a hinderance. I've started shooting outside from "weird" yardages. I used to always shoot from 20, 30, 40, 50, 60.......but I now shoot from a spot and "guess". Scores go down when you do this.

The better you can become at estimating yardages....the better 3D shooter you will be.