[nickrego]

For a foul ball up line that is going to drop near or past the bag, I will stand with my infield foot on the line and my other foot in foul territory until I see the ball about to land and I’m sure I’m not going to be blocked out by F3/5 running up the line for the ball. Then I step over and straddle the line for the call. This way I can easily lean more foul if I need to, to get an angle.

Not textbook, but it works.