Yup, you're right. You're experiencing an Easy AoB hiccup, where it acts differently from the stock dials I'm using in the tutorial. However you have to do it, entering a range of 1200 yards or so should make the technique deadly accurate for gyro angles of under 30º.
If, for some reason you're shooting at great range or outside the 30º gyro angle it's important to set your range to somewhere in the rough neighborhood of the target range. Several hundred yards plus or minus shouldn't matter much. All the guys who love precision are just cringing right now!
