No one is saying go to max load at the gate
I am...I'm saying load them and test fire like I said. If they show signs of pressure or bad accuracy, then you know they are NG.
IME, listed max loads are not dangerous to test. They can damage brass or be unreliable.....maybe cause long term damage to the gun. Max load dangers are about fatigue of shooting over pressure loads many times. I am speaking about modern guns with in spec parts.
You are perfectly safe sneaking up on max load through many iterations....I like most experienced reloaders want to find an accurate load and make a ton of them! I do this through 1-3 iterative load development cycles as described above.