Haven't tried the white glove trick but believe it could be productive under the right conditions.
Have used a turkey fan when stalking in the spring. All I can say is that in certain situations, with confidence, is that I was able to get closer.
There are many forgotten tricks, current tricks or future tricks which may be viable. My uncle from years back was a smoke pole hunter. He harvested several deer by setting out a transistor radio set on classical station with the volume turned down low. The deer would routinely come to investigate the sound and some were w/i mere steps of the radio when he fired.