I voted for breaking 80. It seems to me that storing no doubles would be a matter of playing 18 holes without taking risks. Laying up iso attacking the pin, using an iron or hybrid off the tee, etc. For most golfers, breaking 80 will only happen if you do take these risks. Without DBs you can shoot a 90 on a par 72. Breaking 80 requires you to shoot ten strokes less.
Broke 80 for the first time on a 6100 yard par 72 69.4/135 (not too long but still a par 72), with a 2 over for both front and back nines.
Not too long since being able to break 90 pretty consistently, so I'm pretty happy about it; had to grind away the last 5 holes though due to the immense heat.
Something else to keep in mind is that there is no industry standard length. Each manufacturer sorts that out for themselves; year to year and model to model. Also...a shaft bends down thru impact. The softer the flex the greater the "flattening effect." Theoretically; your recommended lie for a stiff shafted club would be flatter than your recommended lie for a more flexible one.
Of the other pitching method "How to flight your wedges and short irons" and the pitching of using the bounce, one is using the bounce more, the other is using less hinge, seems very different method. When should we use which?