It has only been in the past 7 to 10 years,  that the industry has turned its attention to it and, for the most part, they have not bothered to go to the degree that Norris/Daberko have gone.

Instead of the the industry dealing with the serial process directly, as Norris/Daberko did, they accepted FTL and leaned the whole industry against it as a standard.

doni