Good post, also agree with the five points. When it comes to low pp, know the player, call the pfr if you know he's a tight guy who can't get away from overpairs and who very likely has an overpair this time. Like if you raise 3x in middle position, get reraised to 9x from a very tight guy in the blinds. And if you have AA/KK, don't do the silly minreraise preflop and get stacked by a low pp making a set, make a big reraise so they make mistake by calling