I will disagree with what appears to be the New Wave of how to determine LOP. As far as I am concerned, the elbow method works pretty well. It's not perfect but then no ad hoc measure is perfect.

It only works if you shoot the gun from the crook of your elbow? Well, I guess the #2 method only works if you don't have a long nose or a short thumb.

I am somewhat of a nut about gun fit being far less important than most people seem to think. The human body is wonderfully adjustable and adaptive, especially within a 1" range. If you need a perfectly fitted gun to shoot, you're not much of a shooter.

Give Tiger Woods a 2x4 with black tape wrapped around one end and he could still outgolf any of us here.