DonM Precisely. For me, I just think about 130 or 135 yards as his '150 yards.' So, a dispersion of about 15 yards from 135.
Divide that number in half and you should never aim at any target closer to amy edge of the green than that. So, for me, it would mean never to aim at a flag that is less than 8 yards from the edge of the green, even from 135. If the flag is tucked right, and is only 4 yards from the right edge of the green, I should aim 4 yards left of the pin.