Buffing?
I know this is a few month old but I use a D/A set up at work. We start 1500 D/A paper dry, You use a special foam backing pad on the D/A which keep you from cutting through the clear.
I then switch to 300 grit D/A paper wet. I use a water bottle and spray a 2ft section down, D/A it till the water id dried up then move to the next spot.
Then its buffed out in 3 stages with Malco brand compounds and Glaze. 1st True Grit with a yellow wool pad, Then Buff lite with a Blue foam and finish with Plum Crazy Glaze on a white foam pad.
The D/A is Much faster but its not going to be dead flat. I did both my Dart and 340Swings car this way.