Damn, you ask 20 WGT golfers how to play a shot and you get 20 different answers. Sometimes 21 : ))
Whether you play a full shot, punch, flop or whatever the important thjng to remember is that the meter is not linear. A shot played with 50% power will not go 50% distance.
The other ting to bear in mind is that what works for one player may not be your way of doing it. Personally I use punch for shots between about 10 and 40 yards and pitch for most under that. I have however recently discovered the benefits of the flop shot and am getting to know that better.
Whatever shot you go with, learn it well so that when you're faced with a particular distance you won't be left guessing how hard to hit it. You need to know how hard.