Agreed on the subtleties of the player.
The owner of Diamond Guitars, and I were having a conversation a little over a year ago. We got on the subject of gain/distortion as he also owns Diamond Amps. AC/DC was brought up, and according to him: They used little-to-no gain/dist, but they cranked their master vol. Now I don't know if that would help you, but I figured you either know this to be true, or false. OR you haven't heard it yet, you could try it, and it may help. Didn't hurt to post it. ;)