Can't say that I have.
I was involved in the advertising business from the early sixties until the early nineties. I worked on both the client and agency side and was involved with some large and sophisticated advertisers.
Nobody that I worked with ever gave an iota of credence to the concept of subliminal perception as an advertising device.
It was generally perceived as something for the Psychology Departments at the universities to play with...and use to get ink with the media.
Were we missing out on something?