I am beginning to prefer the method used by a lot of FT shooters, with the POA zero being the top of the trajectory curve, which eliminates ever needing to hold under the target. My .22 Veteran shoots an 18 grain pellet a bit over 900 fps. Using this sight-in method, it shoots essentially flat and on target from roughly 25-35 yards. At some point in there it is shooting just the least bit high, but not enough to require a hold under to hit the target. Anything closer or farther requires some amount of hold over, but never hold under. It works neat with this specific rifle, as the hold overs for 40,45, and 50 yards, are 1,2, and 3 minutes, respectively. I guess it depends on the shooter's most comfortable sight picture, and the easiest to remember hold adjustments.