Tony lets face it...no one is perfect...close enough will have to do, as long as it sounds really good and you can do that easily and I assume you know that after so many years like many of us know playing for audiences..simplified versions, omitted Original beginning verses, and on and on it goes. Making a song your own does include using whatever chords you like. I have heard man so called pros use the so called correct chords and still sound like crap,....
there is more to it then just playing the right chords imo.
And I also think criticism should be backed up with example of which many here never do, it definitely ends the argument, talk is cheap.
That said Gary makes sense in many ways..