Tom Overton wrote:
A trick I learned from one of Scott Kelby's books is to do "dodging and burning" on an overlay layer filled with neutral grey. Technically this is not true dodging and burning; it's painting over the grey (soft brush/low opacity; same as your process) withdegrees of white or black. (or any other colour, I suppose) The great thing about it is this process is completely reversable if you save the layers.
Tom, on Point Pelee, Canada
What an intersting technique, Tom Overton
Thanx for sharing !