I'm not sure if this is the same thing you're talking about, but for a few weeks I was experimenting with a technique of "painting" on lather ... I would use circular brush motions at first to work the lather into my skin and exfoliate, but prior to applying a blade, I would brush the lather (and hence, my whiskers) in the same direction that I was going to shave.
Each time I relathered for the next pass, I would change the direction of "painting" ... so that the lather and whiskers would be lined up the way I was going to shave, whether it be WTG, XTG or ATG.
I don't know if anyone's ever tried this ... I don't recall reading about it here or elsewhere. I just thought it up on my own.
The improvement to my shave was minimal. If there would have been a dramatic improvement, I would have kept on doing it and reported the results here.
If nothing else, it does make it a little easier to see what you're doing, but not by much.
I Came. I Shaved. I Conquered.