tbh, it was outside opinions which got him to think more circumspect after he kept getting out trying to smash the **** out of everything sent down to him. Albeit, they were former or current players at the time but still, sometimes the player himself needs someone else to say "Mate, what are ya doing? What are you trying to prove?"
I maintain that when he was dominating, unless the ball blatantly needed a smashing, Ponting put the pull shot away until he was relatively well set or happened to be feeling a million bucks that day. Certainly didn't go aerial until he was 30+. Early in his best innings, it's all drives and working the ball through leg.
That said, dunno exactly what the problem is. I've noticed he used to be such a big presence at the crease and his batting actually quite simple. He didn't need to be inventive and turn nothing into something like, say, Lara. He was always in perfect position to play one of only a few shots he needed to. If it was short outside off, cut. Full, drive anywhere from point to mid-off. Short on middle, pull, full on middle, on-drive in the arc between mid-wicket and mid-on. Not really much else. These days, he just seems to be caught fairly horribly out of position and is having to work much harder to meet the ball.
With Lara, if he was caught out of position, it didn't matter that much because he had the wrists to be able to change where he hit the ball on the fly. Ponting's batting is all about big initial movements and getting into position first which simplifies things. The one shot to play to that ball becomes obvious, just becomes about execution and timing. Ponting's batting is more tactical than intuitive. Recently, seems he's been caught in several minds when the ball reaches him and I wonder if it's the positional thing.
I see big differences between, say, this;
YouTube - Ricky Ponting 144 Vs England 2001
and this;
YouTube - Kemar Roach Vs Ricky Ponting
Not as decisive/quick when deciding whether to play back or forward any more perhaps? Was in prime form for the former knock and even then, didn't see the pull until he was past about 20.