The 7 for the SEAL Teams as well.
SPECWAR SEAL Teams, the fixed blade actually, latter adapted into a folder.
Journeyman, well lets just say yeah its in the hands of some capaple folks.
The 8 actually though it kind agained fame as being used by the SAS, it was indeed another SEAL Team meant and used knife, designed with input from early member/plankowner of ST6, Chris Carraci. Also has influences from the Bill Moran ST-23 knife and the original warrior knives.
However I can tell you that many of these models and others have seen use in various hands of the military, SOF in particular. Keep in mind not single one of these models was ever offically adopted. They all were pretty much bought out of pocket by those that used/use them.
Anyway thats what I'll add to what others have said.